YATC - Yet Another Tire Calculator [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

Lennart

12-19-2004, 06:44 AM

I have found a nice calculator that presents you a table of possible sizes based on a reference tire. Now all you need to decide is how much taller you want to go e.g. 10% and find an available tire size at some online tire store...

http://ejelta.com/tiresize/index.html

d= Diameter in inches
w= "wall" or sidewall height in inches
xx.xx% Percentage the tire is different from the reference tire, here 245/75-16.

Here is a sample result based on a 245/75-16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffaaaa"> 225/30-16
 d=21.31
w=2.66
-30.04% </td> <td bgcolor="#ffcccc"> 225/35-16
 d=22.20
w=3.10
-27.14% </td> <td bgcolor="#ffcccc"> 225/40-16
 d=23.09
w=3.54
-24.23% </td> <td bgcolor="#ffcccc"> 225/45-16
 d=23.97
w=3.99
-21.32% </td> <td bgcolor="#ffeeee"> 225/50-16
 d=24.86
w=4.43
-18.41% </td> <td bgcolor="#ffeeee"> 225/55-16
 d=25.74
w=4.87
-15.51% </td> <td bgcolor="#ffeeee"> 225/60-16
 d=26.63
w=5.31
-12.60% </td> <td> 225/65-16
 d=27.52
w=5.76
-9.69% </td> <td> 225/70-16
 d=28.40
w=6.20
-6.78% </td> <td bgcolor="#eeffee"> 225/75-16
 d=29.29
w=6.64
-3.88% </td> <td bgcolor="#88ff88"> 225/80-16
 d=30.17
w=7.09
-0.97% </td> <td bgcolor="#aaffaa"> 225/85-16
 d=31.06
w=7.53
+1.94% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffcccc"> 235/30-16
 d=21.55
w=2.78
-29.27% </td> <td bgcolor="#ffcccc"> 235/35-16
 d=22.48
w=3.24
-26.23% </td> <td bgcolor="#ffcccc"> 235/40-16
 d=23.40
w=3.70
-23.19% </td> <td bgcolor="#ffcccc"> 235/45-16
 d=24.33
w=4.16
-20.16% </td> <td bgcolor="#ffeeee"> 235/50-16
 d=25.25
w=4.63
-17.12% </td> <td bgcolor="#ffeeee"> 235/55-16
 d=26.18
w=5.09
-14.08% </td> <td bgcolor="#ffeeee"> 235/60-16
 d=27.10
w=5.55
-11.05% </td> <td> 235/65-16
 d=28.03
w=6.01
-8.01% </td> <td> 235/70-16
 d=28.95
w=6.48
-4.97% </td> <td bgcolor="#aaffaa"> 235/75-16
 d=29.88
w=6.94
-1.94% </td> <td bgcolor="#aaffaa"> 235/80-16
 d=30.80
w=7.40
+1.10% </td> <td> 235/85-16
 d=31.73
w=7.86
+4.13% </td> </tr> <tr valign="baseline"><th bgcolor="#dddddd">245</th> <td bgcolor="#ffcccc"> 245/30-16
 d=21.79
w=2.89
-28.49% </td> <td bgcolor="#ffcccc"> 245/35-16
 d=22.75
w=3.38
-25.33% </td> <td bgcolor="#ffcccc"> 245/40-16
 d=23.72
w=3.86
-22.16% </td> <td bgcolor="#ffeeee"> 245/45-16
 d=24.68
w=4.34
-18.99% </td> <td bgcolor="#ffeeee"> 245/50-16
 d=25.65
w=4.82
-15.83% </td> <td bgcolor="#ffeeee"> 245/55-16
 d=26.61
w=5.31
-12.66% </td> <td> 245/60-16
 d=27.57
w=5.79
-9.50% </td> <td> 245/65-16
 d=28.54
w=6.27
-6.33% </td> <td bgcolor="#eeffee"> 245/70-16
 d=29.50
w=6.75
-3.17% </td> <td class="bold" bgcolor="#88ff88"> 245/75-16
 d=30.47
w=7.23
0.00% </td> <td bgcolor="#eeffee"> 245/80-16
 d=31.43
w=7.72
+3.17% </td> <td> 245/85-16
 d=32.40
w=8.20
+6.33% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffcccc"> 255/30-16
 d=22.02
w=3.01
-27.72% </td> <td bgcolor="#ffcccc"> 255/35-16
 d=23.03
w=3.51
-24.42% </td> <td bgcolor="#ffcccc"> 255/40-16
 d=24.03
w=4.02
-21.13% </td> <td bgcolor="#ffeeee"> 255/45-16
 d=25.04
w=4.52
-17.83% </td> <td bgcolor="#ffeeee"> 255/50-16
 d=26.04
w=5.02
-14.54% </td> <td bgcolor="#ffeeee"> 255/55-16
 d=27.04
w=5.52
-11.24% </td> <td> 255/60-16
 d=28.05
w=6.02
-7.95% </td> <td> 255/65-16
 d=29.05
w=6.53
-4.65% </td> <td bgcolor="#aaffaa"> 255/70-16
 d=30.06
w=7.03
-1.36% </td> <td bgcolor="#aaffaa"> 255/75-16
 d=31.06
w=7.53
+1.94% </td> <td> 255/80-16
 d=32.06
w=8.03
+5.23% </td> <td> 255/85-16
 d=33.07
w=8.53
+8.53% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffcccc"> 265/30-16
 d=22.26
w=3.13
-26.94% </td> <td bgcolor="#ffcccc"> 265/35-16
 d=23.30
w=3.65
-23.52% </td> <td bgcolor="#ffcccc"> 265/40-16
 d=24.35
w=4.17
-20.09% </td> <td bgcolor="#ffeeee"> 265/45-16
 d=25.39
w=4.69
-16.67% </td> <td bgcolor="#ffeeee"> 265/50-16
 d=26.43
w=5.22
-13.24% </td> <td> 265/55-16
 d=27.48
w=5.74
-9.82% </td> <td> 265/60-16
 d=28.52
w=6.26
-6.40% </td> <td bgcolor="#ccffcc"> 265/65-16
 d=29.56
w=6.78
-2.97% </td> <td bgcolor="#88ff88"> 265/70-16
 d=30.61
w=7.30
+0.45% </td> <td bgcolor="#eeffee"> 265/75-16
 d=31.65
w=7.82
+3.88% </td> <td> 265/80-16
 d=32.69
w=8.35
+7.30% </td> <td bgcolor="#ffeeee"> 265/85-16
 d=33.74
w=8.87
+10.72% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffcccc"> 275/30-16
 d=22.50
w=3.25
-26.17% </td> <td bgcolor="#ffcccc"> 275/35-16
 d=23.58
w=3.79
-22.61% </td> <td bgcolor="#ffeeee"> 275/40-16
 d=24.66
w=4.33
-19.06% </td> <td bgcolor="#ffeeee"> 275/45-16
 d=25.74
w=4.87
-15.51% </td> <td bgcolor="#ffeeee"> 275/50-16
 d=26.83
w=5.41
-11.95% </td> <td> 275/55-16
 d=27.91
w=5.95
-8.40% </td> <td> 275/60-16
 d=28.99
w=6.50
-4.85% </td> <td bgcolor="#aaffaa"> 275/65-16
 d=30.07
w=7.04
-1.29% </td> <td bgcolor="#ccffcc"> 275/70-16
 d=31.16
w=7.58
+2.26% </td> <td> 275/75-16
 d=32.24
w=8.12
+5.81% </td> <td> 275/80-16
 d=33.32
w=8.66
+9.37% </td> <td bgcolor="#ffeeee"> 275/85-16
 d=34.41
w=9.20
+12.92% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffcccc"> 285/30-16
 d=22.73
w=3.37
-25.39% </td> <td bgcolor="#ffcccc"> 285/35-16
 d=23.85
w=3.93
-21.71% </td> <td bgcolor="#ffeeee"> 285/40-16
 d=24.98
w=4.49
-18.03% </td> <td bgcolor="#ffeeee"> 285/45-16
 d=26.10
w=5.05
-14.34% </td> <td bgcolor="#ffeeee"> 285/50-16
 d=27.22
w=5.61
-10.66% </td> <td> 285/55-16
 d=28.34
w=6.17
-6.98% </td> <td bgcolor="#eeffee"> 285/60-16
 d=29.46
w=6.73
-3.29% </td> <td bgcolor="#88ff88"> 285/65-16
 d=30.59
w=7.29
+0.39% </td> <td> 285/70-16
 d=31.71
w=7.85
+4.07% </td> <td> 285/75-16
 d=32.83
w=8.42
+7.75% </td> <td bgcolor="#ffeeee"> 285/80-16
 d=33.95
w=8.98
+11.44% </td> <td bgcolor="#ffeeee"> 285/85-16
 d=35.07
w=9.54
+15.12% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffcccc"> 295/30-16
 d=22.97
w=3.48
-24.62% </td> <td bgcolor="#ffcccc"> 295/35-16
 d=24.13
w=4.06
-20.80% </td> <td bgcolor="#ffeeee"> 295/40-16
 d=25.29
w=4.65
-16.99% </td> <td bgcolor="#ffeeee"> 295/45-16
 d=26.45
w=5.23
-13.18% </td> <td> 295/50-16
 d=27.61
w=5.81
-9.37% </td> <td> 295/55-16
 d=28.78
w=6.39
-5.56% </td> <td bgcolor="#aaffaa"> 295/60-16
 d=29.94
w=6.97
-1.74% </td> <td bgcolor="#ccffcc"> 295/65-16
 d=31.10
w=7.55
+2.07% </td> <td> 295/70-16
 d=32.26
w=8.13
+5.88% </td> <td> 295/75-16
 d=33.42
w=8.71
+9.69% </td> <td bgcolor="#ffeeee"> 295/80-16
 d=34.58
w=9.29
+13.50% </td> <td bgcolor="#ffeeee"> 295/85-16
 d=35.74
w=9.87
+17.31% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffcccc"> 305/30-16
 d=23.20
w=3.60
-23.84% </td> <td bgcolor="#ffeeee"> 305/35-16
 d=24.41
w=4.20
-19.90% </td> <td bgcolor="#ffeeee"> 305/40-16
 d=25.61
w=4.80
-15.96% </td> <td bgcolor="#ffeeee"> 305/45-16
 d=26.81
w=5.40
-12.02% </td> <td> 305/50-16
 d=28.01
w=6.00
-8.08% </td> <td> 305/55-16
 d=29.21
w=6.60
-4.13% </td> <td bgcolor="#88ff88"> 305/60-16
 d=30.41
w=7.20
-0.19% </td> <td bgcolor="#eeffee"> 305/65-16
 d=31.61
w=7.81
+3.75% </td> <td> 305/70-16
 d=32.81
w=8.41
+7.69% </td> <td bgcolor="#ffeeee"> 305/75-16
 d=34.01
w=9.01
+11.63% </td> <td bgcolor="#ffeeee"> 305/80-16
 d=35.21
w=9.61
+15.57% </td> <td bgcolor="#ffeeee"> 305/85-16
 d=36.41
w=10.21
+19.51% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffcccc"> 315/30-16
 d=23.44
w=3.72
-23.06% </td> <td bgcolor="#ffeeee"> 315/35-16
 d=24.68
w=4.34
-18.99% </td> <td bgcolor="#ffeeee"> 315/40-16
 d=25.92
w=4.96
-14.92% </td> <td bgcolor="#ffeeee"> 315/45-16
 d=27.16
w=5.58
-10.85% </td> <td> 315/50-16
 d=28.40
w=6.20
-6.78% </td> <td bgcolor="#ccffcc"> 315/55-16
 d=29.64
w=6.82
-2.71% </td> <td bgcolor="#aaffaa"> 315/60-16
 d=30.88
w=7.44
+1.36% </td> <td> 315/65-16
 d=32.12
w=8.06
+5.43% </td> <td> 315/70-16
 d=33.36
w=8.68
+9.50% </td> <td bgcolor="#ffeeee"> 315/75-16
 d=34.60
w=9.30
+13.57% </td> <td bgcolor="#ffeeee"> 315/80-16
 d=35.84
w=9.92
+17.64% </td> <td bgcolor="#ffcccc"> 315/85-16
 d=37.08
w=10.54
+21.71% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffcccc"> 325/30-16
 d=23.68
w=3.84
-22.29% </td> <td bgcolor="#ffeeee"> 325/35-16
 d=24.96
w=4.48
-18.09% </td> <td bgcolor="#ffeeee"> 325/40-16
 d=26.24
w=5.12
-13.89% </td> <td> 325/45-16
 d=27.52
w=5.76
-9.69% </td> <td> 325/50-16
 d=28.80
w=6.40
-5.49% </td> <td bgcolor="#aaffaa"> 325/55-16
 d=30.07
w=7.04
-1.29% </td> <td bgcolor="#ccffcc"> 325/60-16
 d=31.35
w=7.68
+2.91% </td> <td> 325/65-16
 d=32.63
w=8.32
+7.11% </td> <td bgcolor="#ffeeee"> 325/70-16
 d=33.91
w=8.96
+11.31% </td> <td bgcolor="#ffeeee"> 325/75-16
 d=35.19
w=9.60
+15.51% </td> <td bgcolor="#ffeeee"> 325/80-16
 d=36.47
w=10.24
+19.71% </td> <td bgcolor="#ffcccc"> 325/85-16
 d=37.75
w=10.88
+23.90%</td></tr></tbody> </table>

For reference, these calculators have been posted in the past:

http://www.1010tires.com/tiresizecalculator.asp?action=submit
http://www.miata.net/garage/tirecalc.html
http://www.ricksontruck.com/calculators.html
http://www.bncoffroad.com/ratio/

Lennart

12-19-2004, 06:48 AM

Here is the Table for 17" based on a 245/75-16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffcccc"> 225/30-17
 d=22.31
w=2.66
-26.76% </td> <td bgcolor="#ffcccc"> 225/35-17
 d=23.20
w=3.10
-23.85% </td> <td bgcolor="#ffcccc"> 225/40-17
 d=24.09
w=3.54
-20.95% </td> <td bgcolor="#ffeeee"> 225/45-17
 d=24.97
w=3.99
-18.04% </td> <td bgcolor="#ffeeee"> 225/50-17
 d=25.86
w=4.43
-15.13% </td> <td bgcolor="#ffeeee"> 225/55-17
 d=26.74
w=4.87
-12.22% </td> <td> 225/60-17
 d=27.63
w=5.31
-9.32% </td> <td> 225/65-17
 d=28.52
w=5.76
-6.41% </td> <td bgcolor="#eeffee"> 225/70-17
 d=29.40
w=6.20
-3.50% </td> <td bgcolor="#88ff88"> 225/75-17
 d=30.29
w=6.64
-0.59% </td> <td bgcolor="#ccffcc"> 225/80-17
 d=31.17
w=7.09
+2.31% </td> <td> 225/85-17
 d=32.06
w=7.53
+5.22% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffcccc"> 235/30-17
 d=22.55
w=2.78
-25.99% </td> <td bgcolor="#ffcccc"> 235/35-17
 d=23.48
w=3.24
-22.95% </td> <td bgcolor="#ffeeee"> 235/40-17
 d=24.40
w=3.70
-19.91% </td> <td bgcolor="#ffeeee"> 235/45-17
 d=25.33
w=4.16
-16.88% </td> <td bgcolor="#ffeeee"> 235/50-17
 d=26.25
w=4.63
-13.84% </td> <td bgcolor="#ffeeee"> 235/55-17
 d=27.18
w=5.09
-10.80% </td> <td> 235/60-17
 d=28.10
w=5.55
-7.77% </td> <td> 235/65-17
 d=29.03
w=6.01
-4.73% </td> <td bgcolor="#aaffaa"> 235/70-17
 d=29.95
w=6.48
-1.69% </td> <td bgcolor="#aaffaa"> 235/75-17
 d=30.88
w=6.94
+1.34% </td> <td> 235/80-17
 d=31.80
w=7.40
+4.38% </td> <td> 235/85-17
 d=32.73
w=7.86
+7.42% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffcccc"> 245/30-17
 d=22.79
w=2.89
-25.21% </td> <td bgcolor="#ffcccc"> 245/35-17
 d=23.75
w=3.38
-22.04% </td> <td bgcolor="#ffeeee"> 245/40-17
 d=24.72
w=3.86
-18.88% </td> <td bgcolor="#ffeeee"> 245/45-17
 d=25.68
w=4.34
-15.71% </td> <td bgcolor="#ffeeee"> 245/50-17
 d=26.65
w=4.82
-12.55% </td> <td> 245/55-17
 d=27.61
w=5.31
-9.38% </td> <td> 245/60-17
 d=28.57
w=5.79
-6.22% </td> <td bgcolor="#eeffee"> 245/65-17
 d=29.54
w=6.27
-3.05% </td> <td bgcolor="#88ff88"> 245/70-17
 d=30.50
w=6.75
+0.12% </td> <td bgcolor="#eeffee"> 245/75-17
 d=31.47
w=7.23
+3.28% </td> <td> 245/80-17
 d=32.43
w=7.72
+6.45% </td> <td> 245/85-17
 d=33.40
w=8.20
+9.61% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffcccc"> 255/30-17
 d=23.02
w=3.01
-24.43% </td> <td bgcolor="#ffcccc"> 255/35-17
 d=24.03
w=3.51
-21.14% </td> <td bgcolor="#ffeeee"> 255/40-17
 d=25.03
w=4.02
-17.84% </td> <td bgcolor="#ffeeee"> 255/45-17
 d=26.04
w=4.52
-14.55% </td> <td bgcolor="#ffeeee"> 255/50-17
 d=27.04
w=5.02
-11.25% </td> <td> 255/55-17
 d=28.04
w=5.52
-7.96% </td> <td> 255/60-17
 d=29.05
w=6.02
-4.66% </td> <td bgcolor="#aaffaa"> 255/65-17
 d=30.05
w=6.53
-1.37% </td> <td bgcolor="#aaffaa"> 255/70-17
 d=31.06
w=7.03
+1.93% </td> <td> 255/75-17
 d=32.06
w=7.53
+5.22% </td> <td> 255/80-17
 d=33.06
w=8.03
+8.52% </td> <td bgcolor="#ffeeee"> 255/85-17
 d=34.07
w=8.53
+11.81% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffcccc"> 265/30-17
 d=23.26
w=3.13
-23.66% </td> <td bgcolor="#ffcccc"> 265/35-17
 d=24.30
w=3.65
-20.24% </td> <td bgcolor="#ffeeee"> 265/40-17
 d=25.35
w=4.17
-16.81% </td> <td bgcolor="#ffeeee"> 265/45-17
 d=26.39
w=4.69
-13.39% </td> <td> 265/50-17
 d=27.43
w=5.22
-9.96% </td> <td> 265/55-17
 d=28.48
w=5.74
-6.54% </td> <td bgcolor="#eeffee"> 265/60-17
 d=29.52
w=6.26
-3.11% </td> <td bgcolor="#88ff88"> 265/65-17
 d=30.56
w=6.78
+0.31% </td> <td bgcolor="#eeffee"> 265/70-17
 d=31.61
w=7.30
+3.73% </td> <td> 265/75-17
 d=32.65
w=7.82
+7.16% </td> <td bgcolor="#ffeeee"> 265/80-17
 d=33.69
w=8.35
+10.58% </td> <td bgcolor="#ffeeee"> 265/85-17
 d=34.74
w=8.87
+14.01% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffcccc"> 275/30-17
 d=23.50
w=3.25
-22.88% </td> <td bgcolor="#ffeeee"> 275/35-17
 d=24.58
w=3.79
-19.33% </td> <td bgcolor="#ffeeee"> 275/40-17
 d=25.66
w=4.33
-15.78% </td> <td bgcolor="#ffeeee"> 275/45-17
 d=26.74
w=4.87
-12.22% </td> <td> 275/50-17
 d=27.83
w=5.41
-8.67% </td> <td> 275/55-17
 d=28.91
w=5.95
-5.12% </td> <td bgcolor="#aaffaa"> 275/60-17
 d=29.99
w=6.50
-1.56% </td> <td bgcolor="#aaffaa"> 275/65-17
 d=31.07
w=7.04
+1.99% </td> <td> 275/70-17
 d=32.16
w=7.58
+5.54% </td> <td> 275/75-17
 d=33.24
w=8.12
+9.10% </td> <td bgcolor="#ffeeee"> 275/80-17
 d=34.32
w=8.66
+12.65% </td> <td bgcolor="#ffeeee"> 275/85-17
 d=35.41
w=9.20
+16.20% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffcccc"> 285/30-17
 d=23.73
w=3.37
-22.11% </td> <td bgcolor="#ffeeee"> 285/35-17
 d=24.85
w=3.93
-18.43% </td> <td bgcolor="#ffeeee"> 285/40-17
 d=25.98
w=4.49
-14.74% </td> <td bgcolor="#ffeeee"> 285/45-17
 d=27.10
w=5.05
-11.06% </td> <td> 285/50-17
 d=28.22
w=5.61
-7.38% </td> <td bgcolor="#eeffee"> 285/55-17
 d=29.34
w=6.17
-3.70% </td> <td bgcolor="#88ff88"> 285/60-17
 d=30.46
w=6.73
-0.01% </td> <td bgcolor="#eeffee"> 285/65-17
 d=31.59
w=7.29
+3.67% </td> <td> 285/70-17
 d=32.71
w=7.85
+7.35% </td> <td bgcolor="#ffeeee"> 285/75-17
 d=33.83
w=8.42
+11.04% </td> <td bgcolor="#ffeeee"> 285/80-17
 d=34.95
w=8.98
+14.72% </td> <td bgcolor="#ffeeee"> 285/85-17
 d=36.07
w=9.54
+18.40% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffcccc"> 295/30-17
 d=23.97
w=3.48
-21.33% </td> <td bgcolor="#ffeeee"> 295/35-17
 d=25.13
w=4.06
-17.52% </td> <td bgcolor="#ffeeee"> 295/40-17
 d=26.29
w=4.65
-13.71% </td> <td> 295/45-17
 d=27.45
w=5.23
-9.90% </td> <td> 295/50-17
 d=28.61
w=5.81
-6.09% </td> <td bgcolor="#ccffcc"> 295/55-17
 d=29.78
w=6.39
-2.27% </td> <td bgcolor="#aaffaa"> 295/60-17
 d=30.94
w=6.97
+1.54% </td> <td> 295/65-17
 d=32.10
w=7.55
+5.35% </td> <td> 295/70-17
 d=33.26
w=8.13
+9.16% </td> <td bgcolor="#ffeeee"> 295/75-17
 d=34.42
w=8.71
+12.97% </td> <td bgcolor="#ffeeee"> 295/80-17
 d=35.58
w=9.29
+16.79% </td> <td bgcolor="#ffcccc"> 295/85-17
 d=36.74
w=9.87
+20.60% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffcccc"> 305/30-17
 d=24.20
w=3.60
-20.56% </td> <td bgcolor="#ffeeee"> 305/35-17
 d=25.41
w=4.20
-16.62% </td> <td bgcolor="#ffeeee"> 305/40-17
 d=26.61
w=4.80
-12.68% </td> <td> 305/45-17
 d=27.81
w=5.40
-8.73% </td> <td> 305/50-17
 d=29.01
w=6.00
-4.79% </td> <td bgcolor="#88ff88"> 305/55-17
 d=30.21
w=6.60
-0.85% </td> <td bgcolor="#eeffee"> 305/60-17
 d=31.41
w=7.20
+3.09% </td> <td> 305/65-17
 d=32.61
w=7.81
+7.03% </td> <td bgcolor="#ffeeee"> 305/70-17
 d=33.81
w=8.41
+10.97% </td> <td bgcolor="#ffeeee"> 305/75-17
 d=35.01
w=9.01
+14.91% </td> <td bgcolor="#ffeeee"> 305/80-17
 d=36.21
w=9.61
+18.85% </td> <td bgcolor="#ffcccc"> 305/85-17
 d=37.41
w=10.21
+22.79% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffeeee"> 315/30-17
 d=24.44
w=3.72
-19.78% </td> <td bgcolor="#ffeeee"> 315/35-17
 d=25.68
w=4.34
-15.71% </td> <td bgcolor="#ffeeee"> 315/40-17
 d=26.92
w=4.96
-11.64% </td> <td> 315/45-17
 d=28.16
w=5.58
-7.57% </td> <td bgcolor="#eeffee"> 315/50-17
 d=29.40
w=6.20
-3.50% </td> <td bgcolor="#88ff88"> 315/55-17
 d=30.64
w=6.82
+0.57% </td> <td> 315/60-17
 d=31.88
w=7.44
+4.64% </td> <td> 315/65-17
 d=33.12
w=8.06
+8.71% </td> <td bgcolor="#ffeeee"> 315/70-17
 d=34.36
w=8.68
+12.78% </td> <td bgcolor="#ffeeee"> 315/75-17
 d=35.60
w=9.30
+16.85% </td> <td bgcolor="#ffcccc"> 315/80-17
 d=36.84
w=9.92
+20.92% </td> <td bgcolor="#ffcccc"> 315/85-17
 d=38.08
w=10.54
+24.99% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffeeee"> 325/30-17
 d=24.68
w=3.84
-19.01% </td> <td bgcolor="#ffeeee"> 325/35-17
 d=25.96
w=4.48
-14.81% </td> <td bgcolor="#ffeeee"> 325/40-17
 d=27.24
w=5.12
-10.61% </td> <td> 325/45-17
 d=28.52
w=5.76
-6.41% </td> <td bgcolor="#ccffcc"> 325/50-17
 d=29.80
w=6.40
-2.21% </td> <td bgcolor="#aaffaa"> 325/55-17
 d=31.07
w=7.04
+1.99% </td> <td> 325/60-17
 d=32.35
w=7.68
+6.19% </td> <td bgcolor="#ffeeee"> 325/65-17
 d=33.63
w=8.32
+10.39% </td> <td bgcolor="#ffeeee"> 325/70-17
 d=34.91
w=8.96
+14.59% </td> <td bgcolor="#ffeeee"> 325/75-17
 d=36.19
w=9.60
+18.79% </td> <td bgcolor="#ffcccc"> 325/80-17
 d=37.47
w=10.24
+22.99% </td> <td bgcolor="#ffcccc"> 325/85-17
 d=38.75
w=10.88
+27.19%</td></tr></tbody> </table>

for 18" based on a 245/75-16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffcccc"> 245/30-18
 d=23.79
w=2.89
-21.93% </td> <td bgcolor="#ffeeee"> 245/35-18
 d=24.75
w=3.38
-18.76% </td> <td bgcolor="#ffeeee"> 245/40-18
 d=25.72
w=3.86
-15.60% </td> <td bgcolor="#ffeeee"> 245/45-18
 d=26.68
w=4.34
-12.43% </td> <td> 245/50-18
 d=27.65
w=4.82
-9.26% </td> <td> 245/55-18
 d=28.61
w=5.31
-6.10% </td> <td bgcolor="#ccffcc"> 245/60-18
 d=29.57
w=5.79
-2.93% </td> <td bgcolor="#88ff88"> 245/65-18
 d=30.54
w=6.27
+0.23% </td> <td bgcolor="#eeffee"> 245/70-18
 d=31.50
w=6.75
+3.40% </td> <td> 245/75-18
 d=32.47
w=7.23
+6.56% </td> <td> 245/80-18
 d=33.43
w=7.72
+9.73% </td> <td bgcolor="#ffeeee"> 245/85-18
 d=34.40
w=8.20
+12.90% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffcccc"> 255/30-18
 d=24.02
w=3.01
-21.15% </td> <td bgcolor="#ffeeee"> 255/35-18
 d=25.03
w=3.51
-17.86% </td> <td bgcolor="#ffeeee"> 255/40-18
 d=26.03
w=4.02
-14.56% </td> <td bgcolor="#ffeeee"> 255/45-18
 d=27.04
w=4.52
-11.27% </td> <td> 255/50-18
 d=28.04
w=5.02
-7.97% </td> <td> 255/55-18
 d=29.04
w=5.52
-4.68% </td> <td bgcolor="#aaffaa"> 255/60-18
 d=30.05
w=6.02
-1.38% </td> <td bgcolor="#aaffaa"> 255/65-18
 d=31.05
w=6.53
+1.91% </td> <td> 255/70-18
 d=32.06
w=7.03
+5.21% </td> <td> 255/75-18
 d=33.06
w=7.53
+8.50% </td> <td bgcolor="#ffeeee"> 255/80-18
 d=34.06
w=8.03
+11.80% </td> <td bgcolor="#ffeeee"> 255/85-18
 d=35.07
w=8.53
+15.09% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffcccc"> 265/30-18
 d=24.26
w=3.13
-20.38% </td> <td bgcolor="#ffeeee"> 265/35-18
 d=25.30
w=3.65
-16.95% </td> <td bgcolor="#ffeeee"> 265/40-18
 d=26.35
w=4.17
-13.53% </td> <td bgcolor="#ffeeee"> 265/45-18
 d=27.39
w=4.69
-10.10% </td> <td> 265/50-18
 d=28.43
w=5.22
-6.68% </td> <td bgcolor="#eeffee"> 265/55-18
 d=29.48
w=5.74
-3.26% </td> <td bgcolor="#88ff88"> 265/60-18
 d=30.52
w=6.26
+0.17% </td> <td bgcolor="#eeffee"> 265/65-18
 d=31.56
w=6.78
+3.59% </td> <td> 265/70-18
 d=32.61
w=7.30
+7.02% </td> <td bgcolor="#ffeeee"> 265/75-18
 d=33.65
w=7.82
+10.44% </td> <td bgcolor="#ffeeee"> 265/80-18
 d=34.69
w=8.35
+13.86% </td> <td bgcolor="#ffeeee"> 265/85-18
 d=35.74
w=8.87
+17.29% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffeeee"> 275/30-18
 d=24.50
w=3.25
-19.60% </td> <td bgcolor="#ffeeee"> 275/35-18
 d=25.58
w=3.79
-16.05% </td> <td bgcolor="#ffeeee"> 275/40-18
 d=26.66
w=4.33
-12.50% </td> <td> 275/45-18
 d=27.74
w=4.87
-8.94% </td> <td> 275/50-18
 d=28.83
w=5.41
-5.39% </td> <td bgcolor="#aaffaa"> 275/55-18
 d=29.91
w=5.95
-1.83% </td> <td bgcolor="#aaffaa"> 275/60-18
 d=30.99
w=6.50
+1.72% </td> <td> 275/65-18
 d=32.07
w=7.04
+5.27% </td> <td> 275/70-18
 d=33.16
w=7.58
+8.83% </td> <td bgcolor="#ffeeee"> 275/75-18
 d=34.24
w=8.12
+12.38% </td> <td bgcolor="#ffeeee"> 275/80-18
 d=35.32
w=8.66
+15.93% </td> <td bgcolor="#ffeeee"> 275/85-18
 d=36.41
w=9.20
+19.49% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffeeee"> 285/30-18
 d=24.73
w=3.37
-18.83% </td> <td bgcolor="#ffeeee"> 285/35-18
 d=25.85
w=3.93
-15.14% </td> <td bgcolor="#ffeeee"> 285/40-18
 d=26.98
w=4.49
-11.46% </td> <td> 285/45-18
 d=28.10
w=5.05
-7.78% </td> <td> 285/50-18
 d=29.22
w=5.61
-4.10% </td> <td bgcolor="#88ff88"> 285/55-18
 d=30.34
w=6.17
-0.41% </td> <td bgcolor="#eeffee"> 285/60-18
 d=31.46
w=6.73
+3.27% </td> <td> 285/65-18
 d=32.59
w=7.29
+6.95% </td> <td bgcolor="#ffeeee"> 285/70-18
 d=33.71
w=7.85
+10.63% </td> <td bgcolor="#ffeeee"> 285/75-18
 d=34.83
w=8.42
+14.32% </td> <td bgcolor="#ffeeee"> 285/80-18
 d=35.95
w=8.98
+18.00% </td> <td bgcolor="#ffcccc"> 285/85-18
 d=37.07
w=9.54
+21.68% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffeeee"> 295/30-18
 d=24.97
w=3.48
-18.05% </td> <td bgcolor="#ffeeee"> 295/35-18
 d=26.13
w=4.06
-14.24% </td> <td bgcolor="#ffeeee"> 295/40-18
 d=27.29
w=4.65
-10.43% </td> <td> 295/45-18
 d=28.45
w=5.23
-6.62% </td> <td bgcolor="#ccffcc"> 295/50-18
 d=29.61
w=5.81
-2.80% </td> <td bgcolor="#aaffaa"> 295/55-18
 d=30.78
w=6.39
+1.01% </td> <td> 295/60-18
 d=31.94
w=6.97
+4.82% </td> <td> 295/65-18
 d=33.10
w=7.55
+8.63% </td> <td bgcolor="#ffeeee"> 295/70-18
 d=34.26
w=8.13
+12.44% </td> <td bgcolor="#ffeeee"> 295/75-18
 d=35.42
w=8.71
+16.26% </td> <td bgcolor="#ffcccc"> 295/80-18
 d=36.58
w=9.29
+20.07% </td> <td bgcolor="#ffcccc"> 295/85-18
 d=37.74
w=9.87
+23.88% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffeeee"> 305/30-18
 d=25.20
w=3.60
-17.28% </td> <td bgcolor="#ffeeee"> 305/35-18
 d=26.41
w=4.20
-13.34% </td> <td> 305/40-18
 d=27.61
w=4.80
-9.39% </td> <td> 305/45-18
 d=28.81
w=5.40
-5.45% </td> <td bgcolor="#aaffaa"> 305/50-18
 d=30.01
w=6.00
-1.51% </td> <td bgcolor="#ccffcc"> 305/55-18
 d=31.21
w=6.60
+2.43% </td> <td> 305/60-18
 d=32.41
w=7.20
+6.37% </td> <td bgcolor="#ffeeee"> 305/65-18
 d=33.61
w=7.81
+10.31% </td> <td bgcolor="#ffeeee"> 305/70-18
 d=34.81
w=8.41
+14.25% </td> <td bgcolor="#ffeeee"> 305/75-18
 d=36.01
w=9.01
+18.19% </td> <td bgcolor="#ffcccc"> 305/80-18
 d=37.21
w=9.61
+22.13% </td> <td bgcolor="#ffcccc"> 305/85-18
 d=38.41
w=10.21
+26.08% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffeeee"> 315/30-18
 d=25.44
w=3.72
-16.50% </td> <td bgcolor="#ffeeee"> 315/35-18
 d=26.68
w=4.34
-12.43% </td> <td> 315/40-18
 d=27.92
w=4.96
-8.36% </td> <td> 315/45-18
 d=29.16
w=5.58
-4.29% </td> <td bgcolor="#88ff88"> 315/50-18
 d=30.40
w=6.20
-0.22% </td> <td bgcolor="#eeffee"> 315/55-18
 d=31.64
w=6.82
+3.85% </td> <td> 315/60-18
 d=32.88
w=7.44
+7.92% </td> <td bgcolor="#ffeeee"> 315/65-18
 d=34.12
w=8.06
+11.99% </td> <td bgcolor="#ffeeee"> 315/70-18
 d=35.36
w=8.68
+16.06% </td> <td bgcolor="#ffcccc"> 315/75-18
 d=36.60
w=9.30
+20.13% </td> <td bgcolor="#ffcccc"> 315/80-18
 d=37.84
w=9.92
+24.20% </td> <td bgcolor="#ffcccc"> 315/85-18
 d=39.08
w=10.54
+28.27% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffeeee"> 325/30-18
 d=25.68
w=3.84
-15.73% </td> <td bgcolor="#ffeeee"> 325/35-18
 d=26.96
w=4.48
-11.53% </td> <td> 325/40-18
 d=28.24
w=5.12
-7.33% </td> <td bgcolor="#eeffee"> 325/45-18
 d=29.52
w=5.76
-3.13% </td> <td bgcolor="#aaffaa"> 325/50-18
 d=30.80
w=6.40
+1.07% </td> <td> 325/55-18
 d=32.07
w=7.04
+5.27% </td> <td> 325/60-18
 d=33.35
w=7.68
+9.47% </td> <td bgcolor="#ffeeee"> 325/65-18
 d=34.63
w=8.32
+13.67% </td> <td bgcolor="#ffeeee"> 325/70-18
 d=35.91
w=8.96
+17.87% </td> <td bgcolor="#ffcccc"> 325/75-18
 d=37.19
w=9.60
+22.07% </td> <td bgcolor="#ffcccc"> 325/80-18
 d=38.47
w=10.24
+26.27% </td> <td bgcolor="#ffaaaa"> 325/85-18
 d=39.75
w=10.88
+30.47%</td></tr></tbody> </table>
for 20" based on a 245/75-16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffeeee"> 245/30-20
 d=25.79
w=2.89
-15.36% </td> <td bgcolor="#ffeeee"> 245/35-20
 d=26.75
w=3.38
-12.20% </td> <td> 245/40-20
 d=27.72
w=3.86
-9.03% </td> <td> 245/45-20
 d=28.68
w=4.34
-5.87% </td> <td bgcolor="#ccffcc"> 245/50-20
 d=29.65
w=4.82
-2.70% </td> <td bgcolor="#88ff88"> 245/55-20
 d=30.61
w=5.31
+0.47% </td> <td bgcolor="#eeffee"> 245/60-20
 d=31.57
w=5.79
+3.63% </td> <td> 245/65-20
 d=32.54
w=6.27
+6.80% </td> <td> 245/70-20
 d=33.50
w=6.75
+9.96% </td> <td bgcolor="#ffeeee"> 245/75-20
 d=34.47
w=7.23
+13.13% </td> <td bgcolor="#ffeeee"> 245/80-20
 d=35.43
w=7.72
+16.29% </td> <td bgcolor="#ffeeee"> 245/85-20
 d=36.40
w=8.20
+19.46% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffeeee"> 255/30-20
 d=26.02
w=3.01
-14.59% </td> <td bgcolor="#ffeeee"> 255/35-20
 d=27.03
w=3.51
-11.29% </td> <td> 255/40-20
 d=28.03
w=4.02
-8.00% </td> <td> 255/45-20
 d=29.04
w=4.52
-4.70% </td> <td bgcolor="#aaffaa"> 255/50-20
 d=30.04
w=5.02
-1.41% </td> <td bgcolor="#aaffaa"> 255/55-20
 d=31.04
w=5.52
+1.89% </td> <td> 255/60-20
 d=32.05
w=6.02
+5.18% </td> <td> 255/65-20
 d=33.05
w=6.53
+8.48% </td> <td bgcolor="#ffeeee"> 255/70-20
 d=34.06
w=7.03
+11.77% </td> <td bgcolor="#ffeeee"> 255/75-20
 d=35.06
w=7.53
+15.07% </td> <td bgcolor="#ffeeee"> 255/80-20
 d=36.06
w=8.03
+18.36% </td> <td bgcolor="#ffcccc"> 255/85-20
 d=37.07
w=8.53
+21.66% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffeeee"> 265/30-20
 d=26.26
w=3.13
-13.81% </td> <td bgcolor="#ffeeee"> 265/35-20
 d=27.30
w=3.65
-10.39% </td> <td> 265/40-20
 d=28.35
w=4.17
-6.96% </td> <td bgcolor="#eeffee"> 265/45-20
 d=29.39
w=4.69
-3.54% </td> <td bgcolor="#88ff88"> 265/50-20
 d=30.43
w=5.22
-0.12% </td> <td bgcolor="#eeffee"> 265/55-20
 d=31.48
w=5.74
+3.31% </td> <td> 265/60-20
 d=32.52
w=6.26
+6.73% </td> <td bgcolor="#ffeeee"> 265/65-20
 d=33.56
w=6.78
+10.16% </td> <td bgcolor="#ffeeee"> 265/70-20
 d=34.61
w=7.30
+13.58% </td> <td bgcolor="#ffeeee"> 265/75-20
 d=35.65
w=7.82
+17.00% </td> <td bgcolor="#ffcccc"> 265/80-20
 d=36.69
w=8.35
+20.43% </td> <td bgcolor="#ffcccc"> 265/85-20
 d=37.74
w=8.87
+23.85% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffeeee"> 275/30-20
 d=26.50
w=3.25
-13.04% </td> <td> 275/35-20
 d=27.58
w=3.79
-9.48% </td> <td> 275/40-20
 d=28.66
w=4.33
-5.93% </td> <td bgcolor="#ccffcc"> 275/45-20
 d=29.74
w=4.87
-2.38% </td> <td bgcolor="#aaffaa"> 275/50-20
 d=30.83
w=5.41
+1.18% </td> <td> 275/55-20
 d=31.91
w=5.95
+4.73% </td> <td> 275/60-20
 d=32.99
w=6.50
+8.28% </td> <td bgcolor="#ffeeee"> 275/65-20
 d=34.07
w=7.04
+11.84% </td> <td bgcolor="#ffeeee"> 275/70-20
 d=35.16
w=7.58
+15.39% </td> <td bgcolor="#ffeeee"> 275/75-20
 d=36.24
w=8.12
+18.94% </td> <td bgcolor="#ffcccc"> 275/80-20
 d=37.32
w=8.66
+22.50% </td> <td bgcolor="#ffcccc"> 275/85-20
 d=38.41
w=9.20
+26.05% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffeeee"> 285/30-20
 d=26.73
w=3.37
-12.26% </td> <td> 285/35-20
 d=27.85
w=3.93
-8.58% </td> <td> 285/40-20
 d=28.98
w=4.49
-4.90% </td> <td bgcolor="#aaffaa"> 285/45-20
 d=30.10
w=5.05
-1.21% </td> <td bgcolor="#ccffcc"> 285/50-20
 d=31.22
w=5.61
+2.47% </td> <td> 285/55-20
 d=32.34
w=6.17
+6.15% </td> <td> 285/60-20
 d=33.46
w=6.73
+9.83% </td> <td bgcolor="#ffeeee"> 285/65-20
 d=34.59
w=7.29
+13.52% </td> <td bgcolor="#ffeeee"> 285/70-20
 d=35.71
w=7.85
+17.20% </td> <td bgcolor="#ffcccc"> 285/75-20
 d=36.83
w=8.42
+20.88% </td> <td bgcolor="#ffcccc"> 285/80-20
 d=37.95
w=8.98
+24.56% </td> <td bgcolor="#ffcccc"> 285/85-20
 d=39.07
w=9.54
+28.25% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffeeee"> 295/30-20
 d=26.97
w=3.48
-11.49% </td> <td> 295/35-20
 d=28.13
w=4.06
-7.68% </td> <td bgcolor="#eeffee"> 295/40-20
 d=29.29
w=4.65
-3.86% </td> <td bgcolor="#88ff88"> 295/45-20
 d=30.45
w=5.23
-0.05% </td> <td bgcolor="#eeffee"> 295/50-20
 d=31.61
w=5.81
+3.76% </td> <td> 295/55-20
 d=32.78
w=6.39
+7.57% </td> <td bgcolor="#ffeeee"> 295/60-20
 d=33.94
w=6.97
+11.38% </td> <td bgcolor="#ffeeee"> 295/65-20
 d=35.10
w=7.55
+15.20% </td> <td bgcolor="#ffeeee"> 295/70-20
 d=36.26
w=8.13
+19.01% </td> <td bgcolor="#ffcccc"> 295/75-20
 d=37.42
w=8.71
+22.82% </td> <td bgcolor="#ffcccc"> 295/80-20
 d=38.58
w=9.29
+26.63% </td> <td bgcolor="#ffaaaa"> 295/85-20
 d=39.74
w=9.87
+30.44% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffeeee"> 305/30-20
 d=27.20
w=3.60
-10.71% </td> <td> 305/35-20
 d=28.41
w=4.20
-6.77% </td> <td bgcolor="#ccffcc"> 305/40-20
 d=29.61
w=4.80
-2.83% </td> <td bgcolor="#aaffaa"> 305/45-20
 d=30.81
w=5.40
+1.11% </td> <td> 305/50-20
 d=32.01
w=6.00
+5.05% </td> <td> 305/55-20
 d=33.21
w=6.60
+8.99% </td> <td bgcolor="#ffeeee"> 305/60-20
 d=34.41
w=7.20
+12.93% </td> <td bgcolor="#ffeeee"> 305/65-20
 d=35.61
w=7.81
+16.88% </td> <td bgcolor="#ffcccc"> 305/70-20
 d=36.81
w=8.41
+20.82% </td> <td bgcolor="#ffcccc"> 305/75-20
 d=38.01
w=9.01
+24.76% </td> <td bgcolor="#ffcccc"> 305/80-20
 d=39.21
w=9.61
+28.70% </td> <td bgcolor="#ffaaaa"> 305/85-20
 d=40.41
w=10.21
+32.64% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td> 315/30-20
 d=27.44
w=3.72
-9.94% </td> <td> 315/35-20
 d=28.68
w=4.34
-5.87% </td> <td bgcolor="#aaffaa"> 315/40-20
 d=29.92
w=4.96
-1.80% </td> <td bgcolor="#ccffcc"> 315/45-20
 d=31.16
w=5.58
+2.27% </td> <td> 315/50-20
 d=32.40
w=6.20
+6.34% </td> <td bgcolor="#ffeeee"> 315/55-20
 d=33.64
w=6.82
+10.41% </td> <td bgcolor="#ffeeee"> 315/60-20
 d=34.88
w=7.44
+14.49% </td> <td bgcolor="#ffeeee"> 315/65-20
 d=36.12
w=8.06
+18.56% </td> <td bgcolor="#ffcccc"> 315/70-20
 d=37.36
w=8.68
+22.63% </td> <td bgcolor="#ffcccc"> 315/75-20
 d=38.60
w=9.30
+26.70% </td> <td bgcolor="#ffaaaa"> 315/80-20
 d=39.84
w=9.92
+30.77% </td> <td bgcolor="#ffaaaa"> 315/85-20
 d=41.08
w=10.54
+34.84% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td> 325/30-20
 d=27.68
w=3.84
-9.16% </td> <td> 325/35-20
 d=28.96
w=4.48
-4.96% </td> <td bgcolor="#88ff88"> 325/40-20
 d=30.24
w=5.12
-0.76% </td> <td bgcolor="#eeffee"> 325/45-20
 d=31.52
w=5.76
+3.44% </td> <td> 325/50-20
 d=32.80
w=6.40
+7.64% </td> <td bgcolor="#ffeeee"> 325/55-20
 d=34.07
w=7.04
+11.84% </td> <td bgcolor="#ffeeee"> 325/60-20
 d=35.35
w=7.68
+16.04% </td> <td bgcolor="#ffcccc"> 325/65-20
 d=36.63
w=8.32
+20.24% </td> <td bgcolor="#ffcccc"> 325/70-20
 d=37.91
w=8.96
+24.43% </td> <td bgcolor="#ffcccc"> 325/75-20
 d=39.19
w=9.60
+28.63% </td> <td bgcolor="#ffaaaa"> 325/80-20
 d=40.47
w=10.24
+32.83% </td> <td bgcolor="#ffaaaa"> 325/85-20
 d=41.75
w=10.88
+37.03%</td></tr></tbody> </table>

Lennart

01-03-2005, 01:18 PM

as there has not been any response I am adding the tables for the 3500 owners.
Table for 16" based on a 265/75R16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">205</th> <td bgcolor="#ffaaaa"> 205/30-16
 d=20.84
w=2.42
-34.15% </td> <td bgcolor="#ffaaaa"> 205/35-16
 d=21.65
w=2.82
-31.60% </td> <td bgcolor="#ffcccc"> 205/40-16
 d=22.46
w=3.23
-29.05% </td> <td bgcolor="#ffcccc"> 205/45-16
 d=23.26
w=3.63
-26.50% </td> <td bgcolor="#ffcccc"> 205/50-16
 d=24.07
w=4.04
-23.95% </td> <td bgcolor="#ffcccc"> 205/55-16
 d=24.88
w=4.44
-21.40% </td> <td bgcolor="#ffeeee"> 205/60-16
 d=25.69
w=4.84
-18.85% </td> <td bgcolor="#ffeeee"> 205/65-16
 d=26.49
w=5.25
-16.30% </td> <td bgcolor="#ffeeee"> 205/70-16
 d=27.30
w=5.65
-13.75% </td> <td bgcolor="#ffeeee"> 205/75-16
 d=28.11
w=6.05
-11.20% </td> <td> 205/80-16
 d=28.91
w=6.46
-8.65% </td> <td> 205/85-16
 d=29.72
w=6.86
-6.10% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">215</th> <td bgcolor="#ffaaaa"> 215/30-16
 d=21.08
w=2.54
-33.40% </td> <td bgcolor="#ffaaaa"> 215/35-16
 d=21.93
w=2.96
-30.73% </td> <td bgcolor="#ffcccc"> 215/40-16
 d=22.77
w=3.39
-28.05% </td> <td bgcolor="#ffcccc"> 215/45-16
 d=23.62
w=3.81
-25.38% </td> <td bgcolor="#ffcccc"> 215/50-16
 d=24.46
w=4.23
-22.70% </td> <td bgcolor="#ffcccc"> 215/55-16
 d=25.31
w=4.66
-20.03% </td> <td bgcolor="#ffeeee"> 215/60-16
 d=26.16
w=5.08
-17.35% </td> <td bgcolor="#ffeeee"> 215/65-16
 d=27.00
w=5.50
-14.68% </td> <td bgcolor="#ffeeee"> 215/70-16
 d=27.85
w=5.93
-12.00% </td> <td> 215/75-16
 d=28.70
w=6.35
-9.33% </td> <td> 215/80-16
 d=29.54
w=6.77
-6.66% </td> <td bgcolor="#eeffee"> 215/85-16
 d=30.39
w=7.19
-3.98% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffaaaa"> 225/30-16
 d=21.31
w=2.66
-32.65% </td> <td bgcolor="#ffcccc"> 225/35-16
 d=22.20
w=3.10
-29.85% </td> <td bgcolor="#ffcccc"> 225/40-16
 d=23.09
w=3.54
-27.06% </td> <td bgcolor="#ffcccc"> 225/45-16
 d=23.97
w=3.99
-24.26% </td> <td bgcolor="#ffcccc"> 225/50-16
 d=24.86
w=4.43
-21.46% </td> <td bgcolor="#ffeeee"> 225/55-16
 d=25.74
w=4.87
-18.66% </td> <td bgcolor="#ffeeee"> 225/60-16
 d=26.63
w=5.31
-15.86% </td> <td bgcolor="#ffeeee"> 225/65-16
 d=27.52
w=5.76
-13.06% </td> <td bgcolor="#ffeeee"> 225/70-16
 d=28.40
w=6.20
-10.26% </td> <td> 225/75-16
 d=29.29
w=6.64
-7.46% </td> <td> 225/80-16
 d=30.17
w=7.09
-4.66% </td> <td bgcolor="#aaffaa"> 225/85-16
 d=31.06
w=7.53
-1.87% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffaaaa"> 235/30-16
 d=21.55
w=2.78
-31.91% </td> <td bgcolor="#ffcccc"> 235/35-16
 d=22.48
w=3.24
-28.98% </td> <td bgcolor="#ffcccc"> 235/40-16
 d=23.40
w=3.70
-26.06% </td> <td bgcolor="#ffcccc"> 235/45-16
 d=24.33
w=4.16
-23.14% </td> <td bgcolor="#ffcccc"> 235/50-16
 d=25.25
w=4.63
-20.21% </td> <td bgcolor="#ffeeee"> 235/55-16
 d=26.18
w=5.09
-17.29% </td> <td bgcolor="#ffeeee"> 235/60-16
 d=27.10
w=5.55
-14.37% </td> <td bgcolor="#ffeeee"> 235/65-16
 d=28.03
w=6.01
-11.44% </td> <td> 235/70-16
 d=28.95
w=6.48
-8.52% </td> <td> 235/75-16
 d=29.88
w=6.94
-5.60% </td> <td bgcolor="#ccffcc"> 235/80-16
 d=30.80
w=7.40
-2.67% </td> <td bgcolor="#88ff88"> 235/85-16
 d=31.73
w=7.86
+0.25% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffaaaa"> 245/30-16
 d=21.79
w=2.89
-31.16% </td> <td bgcolor="#ffcccc"> 245/35-16
 d=22.75
w=3.38
-28.11% </td> <td bgcolor="#ffcccc"> 245/40-16
 d=23.72
w=3.86
-25.07% </td> <td bgcolor="#ffcccc"> 245/45-16
 d=24.68
w=4.34
-22.02% </td> <td bgcolor="#ffeeee"> 245/50-16
 d=25.65
w=4.82
-18.97% </td> <td bgcolor="#ffeeee"> 245/55-16
 d=26.61
w=5.31
-15.92% </td> <td bgcolor="#ffeeee"> 245/60-16
 d=27.57
w=5.79
-12.87% </td> <td> 245/65-16
 d=28.54
w=6.27
-9.83% </td> <td> 245/70-16
 d=29.50
w=6.75
-6.78% </td> <td bgcolor="#eeffee"> 245/75-16
 d=30.47
w=7.23
-3.73% </td> <td bgcolor="#88ff88"> 245/80-16
 d=31.43
w=7.72
-0.68% </td> <td bgcolor="#ccffcc"> 245/85-16
 d=32.40
w=8.20
+2.36% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffaaaa"> 255/30-16
 d=22.02
w=3.01
-30.41% </td> <td bgcolor="#ffcccc"> 255/35-16
 d=23.03
w=3.51
-27.24% </td> <td bgcolor="#ffcccc"> 255/40-16
 d=24.03
w=4.02
-24.07% </td> <td bgcolor="#ffcccc"> 255/45-16
 d=25.04
w=4.52
-20.90% </td> <td bgcolor="#ffeeee"> 255/50-16
 d=26.04
w=5.02
-17.73% </td> <td bgcolor="#ffeeee"> 255/55-16
 d=27.04
w=5.52
-14.55% </td> <td bgcolor="#ffeeee"> 255/60-16
 d=28.05
w=6.02
-11.38% </td> <td> 255/65-16
 d=29.05
w=6.53
-8.21% </td> <td> 255/70-16
 d=30.06
w=7.03
-5.04% </td> <td bgcolor="#aaffaa"> 255/75-16
 d=31.06
w=7.53
-1.87% </td> <td bgcolor="#aaffaa"> 255/80-16
 d=32.06
w=8.03
+1.31% </td> <td> 255/85-16
 d=33.07
w=8.53
+4.48% </td> </tr> <tr valign="baseline"><th bgcolor="#dddddd">265</th> <td bgcolor="#ffcccc"> 265/30-16
 d=22.26
w=3.13
-29.67% </td> <td bgcolor="#ffcccc"> 265/35-16
 d=23.30
w=3.65
-26.37% </td> <td bgcolor="#ffcccc"> 265/40-16
 d=24.35
w=4.17
-23.08% </td> <td bgcolor="#ffeeee"> 265/45-16
 d=25.39
w=4.69
-19.78% </td> <td bgcolor="#ffeeee"> 265/50-16
 d=26.43
w=5.22
-16.48% </td> <td bgcolor="#ffeeee"> 265/55-16
 d=27.48
w=5.74
-13.19% </td> <td> 265/60-16
 d=28.52
w=6.26
-9.89% </td> <td> 265/65-16
 d=29.56
w=6.78
-6.59% </td> <td bgcolor="#eeffee"> 265/70-16
 d=30.61
w=7.30
-3.30% </td> <td class="bold" bgcolor="#88ff88"> 265/75-16
 d=31.65
w=7.82
0.00% </td> <td bgcolor="#eeffee"> 265/80-16
 d=32.69
w=8.35
+3.30% </td> <td> 265/85-16
 d=33.74
w=8.87
+6.59% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffcccc"> 275/30-16
 d=22.50
w=3.25
-28.92% </td> <td bgcolor="#ffcccc"> 275/35-16
 d=23.58
w=3.79
-25.50% </td> <td bgcolor="#ffcccc"> 275/40-16
 d=24.66
w=4.33
-22.08% </td> <td bgcolor="#ffeeee"> 275/45-16
 d=25.74
w=4.87
-18.66% </td> <td bgcolor="#ffeeee"> 275/50-16
 d=26.83
w=5.41
-15.24% </td> <td bgcolor="#ffeeee"> 275/55-16
 d=27.91
w=5.95
-11.82% </td> <td> 275/60-16
 d=28.99
w=6.50
-8.40% </td> <td> 275/65-16
 d=30.07
w=7.04
-4.98% </td> <td bgcolor="#aaffaa"> 275/70-16
 d=31.16
w=7.58
-1.55% </td> <td bgcolor="#aaffaa"> 275/75-16
 d=32.24
w=8.12
+1.87% </td> <td> 275/80-16
 d=33.32
w=8.66
+5.29% </td> <td> 275/85-16
 d=34.41
w=9.20
+8.71% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffcccc"> 285/30-16
 d=22.73
w=3.37
-28.18% </td> <td bgcolor="#ffcccc"> 285/35-16
 d=23.85
w=3.93
-24.63% </td> <td bgcolor="#ffcccc"> 285/40-16
 d=24.98
w=4.49
-21.08% </td> <td bgcolor="#ffeeee"> 285/45-16
 d=26.10
w=5.05
-17.54% </td> <td bgcolor="#ffeeee"> 285/50-16
 d=27.22
w=5.61
-13.99% </td> <td bgcolor="#ffeeee"> 285/55-16
 d=28.34
w=6.17
-10.45% </td> <td> 285/60-16
 d=29.46
w=6.73
-6.90% </td> <td bgcolor="#eeffee"> 285/65-16
 d=30.59
w=7.29
-3.36% </td> <td bgcolor="#88ff88"> 285/70-16
 d=31.71
w=7.85
+0.19% </td> <td bgcolor="#eeffee"> 285/75-16
 d=32.83
w=8.42
+3.73% </td> <td> 285/80-16
 d=33.95
w=8.98
+7.28% </td> <td bgcolor="#ffeeee"> 285/85-16
 d=35.07
w=9.54
+10.82% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffcccc"> 295/30-16
 d=22.97
w=3.48
-27.43% </td> <td bgcolor="#ffcccc"> 295/35-16
 d=24.13
w=4.06
-23.76% </td> <td bgcolor="#ffcccc"> 295/40-16
 d=25.29
w=4.65
-20.09% </td> <td bgcolor="#ffeeee"> 295/45-16
 d=26.45
w=5.23
-16.42% </td> <td bgcolor="#ffeeee"> 295/50-16
 d=27.61
w=5.81
-12.75% </td> <td> 295/55-16
 d=28.78
w=6.39
-9.08% </td> <td> 295/60-16
 d=29.94
w=6.97
-5.41% </td> <td bgcolor="#aaffaa"> 295/65-16
 d=31.10
w=7.55
-1.74% </td> <td bgcolor="#aaffaa"> 295/70-16
 d=32.26
w=8.13
+1.93% </td> <td> 295/75-16
 d=33.42
w=8.71
+5.60% </td> <td> 295/80-16
 d=34.58
w=9.29
+9.27% </td> <td bgcolor="#ffeeee"> 295/85-16
 d=35.74
w=9.87
+12.94% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffcccc"> 305/30-16
 d=23.20
w=3.60
-26.68% </td> <td bgcolor="#ffcccc"> 305/35-16
 d=24.41
w=4.20
-22.89% </td> <td bgcolor="#ffeeee"> 305/40-16
 d=25.61
w=4.80
-19.09% </td> <td bgcolor="#ffeeee"> 305/45-16
 d=26.81
w=5.40
-15.30% </td> <td bgcolor="#ffeeee"> 305/50-16
 d=28.01
w=6.00
-11.51% </td> <td> 305/55-16
 d=29.21
w=6.60
-7.71% </td> <td bgcolor="#eeffee"> 305/60-16
 d=30.41
w=7.20
-3.92% </td> <td bgcolor="#88ff88"> 305/65-16
 d=31.61
w=7.81
-0.12% </td> <td bgcolor="#eeffee"> 305/70-16
 d=32.81
w=8.41
+3.67% </td> <td> 305/75-16
 d=34.01
w=9.01
+7.46% </td> <td bgcolor="#ffeeee"> 305/80-16
 d=35.21
w=9.61
+11.26% </td> <td bgcolor="#ffeeee"> 305/85-16
 d=36.41
w=10.21
+15.05% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffcccc"> 315/30-16
 d=23.44
w=3.72
-25.94% </td> <td bgcolor="#ffcccc"> 315/35-16
 d=24.68
w=4.34
-22.02% </td> <td bgcolor="#ffeeee"> 315/40-16
 d=25.92
w=4.96
-18.10% </td> <td bgcolor="#ffeeee"> 315/45-16
 d=27.16
w=5.58
-14.18% </td> <td bgcolor="#ffeeee"> 315/50-16
 d=28.40
w=6.20
-10.26% </td> <td> 315/55-16
 d=29.64
w=6.82
-6.34% </td> <td bgcolor="#ccffcc"> 315/60-16
 d=30.88
w=7.44
-2.43% </td> <td bgcolor="#aaffaa"> 315/65-16
 d=32.12
w=8.06
+1.49% </td> <td> 315/70-16
 d=33.36
w=8.68
+5.41% </td> <td> 315/75-16
 d=34.60
w=9.30
+9.33% </td> <td bgcolor="#ffeeee"> 315/80-16
 d=35.84
w=9.92
+13.25% </td> <td bgcolor="#ffeeee"> 315/85-16
 d=37.08
w=10.54
+17.17% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffcccc"> 325/30-16
 d=23.68
w=3.84
-25.19% </td> <td bgcolor="#ffcccc"> 325/35-16
 d=24.96
w=4.48
-21.15% </td> <td bgcolor="#ffeeee"> 325/40-16
 d=26.24
w=5.12
-17.10% </td> <td bgcolor="#ffeeee"> 325/45-16
 d=27.52
w=5.76
-13.06% </td> <td> 325/50-16
 d=28.80
w=6.40
-9.02% </td> <td> 325/55-16
 d=30.07
w=7.04
-4.98% </td> <td bgcolor="#88ff88"> 325/60-16
 d=31.35
w=7.68
-0.93% </td> <td bgcolor="#eeffee"> 325/65-16
 d=32.63
w=8.32
+3.11% </td> <td> 325/70-16
 d=33.91
w=8.96
+7.15% </td> <td bgcolor="#ffeeee"> 325/75-16
 d=35.19
w=9.60
+11.20% </td> <td bgcolor="#ffeeee"> 325/80-16
 d=36.47
w=10.24
+15.24% </td> <td bgcolor="#ffeeee"> 325/85-16
 d=37.75
w=10.88
+19.28%</td></tr></tbody> </table>

Table for 17" based on a 265/75R16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">205</th> <td bgcolor="#ffaaaa"> 205/30-17
 d=21.84
w=2.42
-30.99% </td> <td bgcolor="#ffcccc"> 205/35-17
 d=22.65
w=2.82
-28.44% </td> <td bgcolor="#ffcccc"> 205/40-17
 d=23.46
w=3.23
-25.89% </td> <td bgcolor="#ffcccc"> 205/45-17
 d=24.26
w=3.63
-23.34% </td> <td bgcolor="#ffcccc"> 205/50-17
 d=25.07
w=4.04
-20.79% </td> <td bgcolor="#ffeeee"> 205/55-17
 d=25.88
w=4.44
-18.24% </td> <td bgcolor="#ffeeee"> 205/60-17
 d=26.69
w=4.84
-15.69% </td> <td bgcolor="#ffeeee"> 205/65-17
 d=27.49
w=5.25
-13.14% </td> <td bgcolor="#ffeeee"> 205/70-17
 d=28.30
w=5.65
-10.59% </td> <td> 205/75-17
 d=29.11
w=6.05
-8.04% </td> <td> 205/80-17
 d=29.91
w=6.46
-5.49% </td> <td bgcolor="#ccffcc"> 205/85-17
 d=30.72
w=6.86
-2.94% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">215</th> <td bgcolor="#ffaaaa"> 215/30-17
 d=22.08
w=2.54
-30.24% </td> <td bgcolor="#ffcccc"> 215/35-17
 d=22.93
w=2.96
-27.57% </td> <td bgcolor="#ffcccc"> 215/40-17
 d=23.77
w=3.39
-24.89% </td> <td bgcolor="#ffcccc"> 215/45-17
 d=24.62
w=3.81
-22.22% </td> <td bgcolor="#ffeeee"> 215/50-17
 d=25.46
w=4.23
-19.54% </td> <td bgcolor="#ffeeee"> 215/55-17
 d=26.31
w=4.66
-16.87% </td> <td bgcolor="#ffeeee"> 215/60-17
 d=27.16
w=5.08
-14.19% </td> <td bgcolor="#ffeeee"> 215/65-17
 d=28.00
w=5.50
-11.52% </td> <td> 215/70-17
 d=28.85
w=5.93
-8.84% </td> <td> 215/75-17
 d=29.70
w=6.35
-6.17% </td> <td bgcolor="#eeffee"> 215/80-17
 d=30.54
w=6.77
-3.50% </td> <td bgcolor="#88ff88"> 215/85-17
 d=31.39
w=7.19
-0.82% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffcccc"> 225/30-17
 d=22.31
w=2.66
-29.49% </td> <td bgcolor="#ffcccc"> 225/35-17
 d=23.20
w=3.10
-26.69% </td> <td bgcolor="#ffcccc"> 225/40-17
 d=24.09
w=3.54
-23.90% </td> <td bgcolor="#ffcccc"> 225/45-17
 d=24.97
w=3.99
-21.10% </td> <td bgcolor="#ffeeee"> 225/50-17
 d=25.86
w=4.43
-18.30% </td> <td bgcolor="#ffeeee"> 225/55-17
 d=26.74
w=4.87
-15.50% </td> <td bgcolor="#ffeeee"> 225/60-17
 d=27.63
w=5.31
-12.70% </td> <td> 225/65-17
 d=28.52
w=5.76
-9.90% </td> <td> 225/70-17
 d=29.40
w=6.20
-7.10% </td> <td> 225/75-17
 d=30.29
w=6.64
-4.30% </td> <td bgcolor="#aaffaa"> 225/80-17
 d=31.17
w=7.09
-1.51% </td> <td bgcolor="#aaffaa"> 225/85-17
 d=32.06
w=7.53
+1.29% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffcccc"> 235/30-17
 d=22.55
w=2.78
-28.75% </td> <td bgcolor="#ffcccc"> 235/35-17
 d=23.48
w=3.24
-25.82% </td> <td bgcolor="#ffcccc"> 235/40-17
 d=24.40
w=3.70
-22.90% </td> <td bgcolor="#ffeeee"> 235/45-17
 d=25.33
w=4.16
-19.98% </td> <td bgcolor="#ffeeee"> 235/50-17
 d=26.25
w=4.63
-17.05% </td> <td bgcolor="#ffeeee"> 235/55-17
 d=27.18
w=5.09
-14.13% </td> <td bgcolor="#ffeeee"> 235/60-17
 d=28.10
w=5.55
-11.21% </td> <td> 235/65-17
 d=29.03
w=6.01
-8.28% </td> <td> 235/70-17
 d=29.95
w=6.48
-5.36% </td> <td bgcolor="#ccffcc"> 235/75-17
 d=30.88
w=6.94
-2.44% </td> <td bgcolor="#88ff88"> 235/80-17
 d=31.80
w=7.40
+0.49% </td> <td bgcolor="#eeffee"> 235/85-17
 d=32.73
w=7.86
+3.41% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffcccc"> 245/30-17
 d=22.79
w=2.89
-28.00% </td> <td bgcolor="#ffcccc"> 245/35-17
 d=23.75
w=3.38
-24.95% </td> <td bgcolor="#ffcccc"> 245/40-17
 d=24.72
w=3.86
-21.91% </td> <td bgcolor="#ffeeee"> 245/45-17
 d=25.68
w=4.34
-18.86% </td> <td bgcolor="#ffeeee"> 245/50-17
 d=26.65
w=4.82
-15.81% </td> <td bgcolor="#ffeeee"> 245/55-17
 d=27.61
w=5.31
-12.76% </td> <td> 245/60-17
 d=28.57
w=5.79
-9.72% </td> <td> 245/65-17
 d=29.54
w=6.27
-6.67% </td> <td bgcolor="#eeffee"> 245/70-17
 d=30.50
w=6.75
-3.62% </td> <td bgcolor="#88ff88"> 245/75-17
 d=31.47
w=7.23
-0.57% </td> <td bgcolor="#ccffcc"> 245/80-17
 d=32.43
w=7.72
+2.48% </td> <td> 245/85-17
 d=33.40
w=8.20
+5.52% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffcccc"> 255/30-17
 d=23.02
w=3.01
-27.25% </td> <td bgcolor="#ffcccc"> 255/35-17
 d=24.03
w=3.51
-24.08% </td> <td bgcolor="#ffcccc"> 255/40-17
 d=25.03
w=4.02
-20.91% </td> <td bgcolor="#ffeeee"> 255/45-17
 d=26.04
w=4.52
-17.74% </td> <td bgcolor="#ffeeee"> 255/50-17
 d=27.04
w=5.02
-14.57% </td> <td bgcolor="#ffeeee"> 255/55-17
 d=28.04
w=5.52
-11.39% </td> <td> 255/60-17
 d=29.05
w=6.02
-8.22% </td> <td> 255/65-17
 d=30.05
w=6.53
-5.05% </td> <td bgcolor="#aaffaa"> 255/70-17
 d=31.06
w=7.03
-1.88% </td> <td bgcolor="#aaffaa"> 255/75-17
 d=32.06
w=7.53
+1.29% </td> <td> 255/80-17
 d=33.06
w=8.03
+4.47% </td> <td> 255/85-17
 d=34.07
w=8.53
+7.64% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffcccc"> 265/30-17
 d=23.26
w=3.13
-26.51% </td> <td bgcolor="#ffcccc"> 265/35-17
 d=24.30
w=3.65
-23.21% </td> <td bgcolor="#ffeeee"> 265/40-17
 d=25.35
w=4.17
-19.92% </td> <td bgcolor="#ffeeee"> 265/45-17
 d=26.39
w=4.69
-16.62% </td> <td bgcolor="#ffeeee"> 265/50-17
 d=27.43
w=5.22
-13.32% </td> <td bgcolor="#ffeeee"> 265/55-17
 d=28.48
w=5.74
-10.03% </td> <td> 265/60-17
 d=29.52
w=6.26
-6.73% </td> <td bgcolor="#eeffee"> 265/65-17
 d=30.56
w=6.78
-3.43% </td> <td bgcolor="#88ff88"> 265/70-17
 d=31.61
w=7.30
-0.14% </td> <td bgcolor="#eeffee"> 265/75-17
 d=32.65
w=7.82
+3.16% </td> <td> 265/80-17
 d=33.69
w=8.35
+6.46% </td> <td> 265/85-17
 d=34.74
w=8.87
+9.75% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffcccc"> 275/30-17
 d=23.50
w=3.25
-25.76% </td> <td bgcolor="#ffcccc"> 275/35-17
 d=24.58
w=3.79
-22.34% </td> <td bgcolor="#ffeeee"> 275/40-17
 d=25.66
w=4.33
-18.92% </td> <td bgcolor="#ffeeee"> 275/45-17
 d=26.74
w=4.87
-15.50% </td> <td bgcolor="#ffeeee"> 275/50-17
 d=27.83
w=5.41
-12.08% </td> <td> 275/55-17
 d=28.91
w=5.95
-8.66% </td> <td> 275/60-17
 d=29.99
w=6.50
-5.24% </td> <td bgcolor="#aaffaa"> 275/65-17
 d=31.07
w=7.04
-1.82% </td> <td bgcolor="#aaffaa"> 275/70-17
 d=32.16
w=7.58
+1.60% </td> <td> 275/75-17
 d=33.24
w=8.12
+5.03% </td> <td> 275/80-17
 d=34.32
w=8.66
+8.45% </td> <td bgcolor="#ffeeee"> 275/85-17
 d=35.41
w=9.20
+11.87% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffcccc"> 285/30-17
 d=23.73
w=3.37
-25.02% </td> <td bgcolor="#ffcccc"> 285/35-17
 d=24.85
w=3.93
-21.47% </td> <td bgcolor="#ffeeee"> 285/40-17
 d=25.98
w=4.49
-17.93% </td> <td bgcolor="#ffeeee"> 285/45-17
 d=27.10
w=5.05
-14.38% </td> <td bgcolor="#ffeeee"> 285/50-17
 d=28.22
w=5.61
-10.83% </td> <td> 285/55-17
 d=29.34
w=6.17
-7.29% </td> <td bgcolor="#eeffee"> 285/60-17
 d=30.46
w=6.73
-3.74% </td> <td bgcolor="#88ff88"> 285/65-17
 d=31.59
w=7.29
-0.20% </td> <td bgcolor="#eeffee"> 285/70-17
 d=32.71
w=7.85
+3.35% </td> <td> 285/75-17
 d=33.83
w=8.42
+6.89% </td> <td bgcolor="#ffeeee"> 285/80-17
 d=34.95
w=8.98
+10.44% </td> <td bgcolor="#ffeeee"> 285/85-17
 d=36.07
w=9.54
+13.98% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffcccc"> 295/30-17
 d=23.97
w=3.48
-24.27% </td> <td bgcolor="#ffcccc"> 295/35-17
 d=25.13
w=4.06
-20.60% </td> <td bgcolor="#ffeeee"> 295/40-17
 d=26.29
w=4.65
-16.93% </td> <td bgcolor="#ffeeee"> 295/45-17
 d=27.45
w=5.23
-13.26% </td> <td> 295/50-17
 d=28.61
w=5.81
-9.59% </td> <td> 295/55-17
 d=29.78
w=6.39
-5.92% </td> <td bgcolor="#ccffcc"> 295/60-17
 d=30.94
w=6.97
-2.25% </td> <td bgcolor="#aaffaa"> 295/65-17
 d=32.10
w=7.55
+1.42% </td> <td> 295/70-17
 d=33.26
w=8.13
+5.09% </td> <td> 295/75-17
 d=34.42
w=8.71
+8.76% </td> <td bgcolor="#ffeeee"> 295/80-17
 d=35.58
w=9.29
+12.43% </td> <td bgcolor="#ffeeee"> 295/85-17
 d=36.74
w=9.87
+16.10% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffcccc"> 305/30-17
 d=24.20
w=3.60
-23.52% </td> <td bgcolor="#ffeeee"> 305/35-17
 d=25.41
w=4.20
-19.73% </td> <td bgcolor="#ffeeee"> 305/40-17
 d=26.61
w=4.80
-15.93% </td> <td bgcolor="#ffeeee"> 305/45-17
 d=27.81
w=5.40
-12.14% </td> <td> 305/50-17
 d=29.01
w=6.00
-8.35% </td> <td> 305/55-17
 d=30.21
w=6.60
-4.55% </td> <td bgcolor="#88ff88"> 305/60-17
 d=31.41
w=7.20
-0.76% </td> <td bgcolor="#eeffee"> 305/65-17
 d=32.61
w=7.81
+3.04% </td> <td> 305/70-17
 d=33.81
w=8.41
+6.83% </td> <td bgcolor="#ffeeee"> 305/75-17
 d=35.01
w=9.01
+10.62% </td> <td bgcolor="#ffeeee"> 305/80-17
 d=36.21
w=9.61
+14.42% </td> <td bgcolor="#ffeeee"> 305/85-17
 d=37.41
w=10.21
+18.21% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffcccc"> 315/30-17
 d=24.44
w=3.72
-22.78% </td> <td bgcolor="#ffeeee"> 315/35-17
 d=25.68
w=4.34
-18.86% </td> <td bgcolor="#ffeeee"> 315/40-17
 d=26.92
w=4.96
-14.94% </td> <td bgcolor="#ffeeee"> 315/45-17
 d=28.16
w=5.58
-11.02% </td> <td> 315/50-17
 d=29.40
w=6.20
-7.10% </td> <td bgcolor="#eeffee"> 315/55-17
 d=30.64
w=6.82
-3.18% </td> <td bgcolor="#88ff88"> 315/60-17
 d=31.88
w=7.44
+0.73% </td> <td> 315/65-17
 d=33.12
w=8.06
+4.65% </td> <td> 315/70-17
 d=34.36
w=8.68
+8.57% </td> <td bgcolor="#ffeeee"> 315/75-17
 d=35.60
w=9.30
+12.49% </td> <td bgcolor="#ffeeee"> 315/80-17
 d=36.84
w=9.92
+16.41% </td> <td bgcolor="#ffcccc"> 315/85-17
 d=38.08
w=10.54
+20.33% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffcccc"> 325/30-17
 d=24.68
w=3.84
-22.03% </td> <td bgcolor="#ffeeee"> 325/35-17
 d=25.96
w=4.48
-17.99% </td> <td bgcolor="#ffeeee"> 325/40-17
 d=27.24
w=5.12
-13.94% </td> <td> 325/45-17
 d=28.52
w=5.76
-9.90% </td> <td> 325/50-17
 d=29.80
w=6.40
-5.86% </td> <td bgcolor="#aaffaa"> 325/55-17
 d=31.07
w=7.04
-1.82% </td> <td bgcolor="#ccffcc"> 325/60-17
 d=32.35
w=7.68
+2.23% </td> <td> 325/65-17
 d=33.63
w=8.32
+6.27% </td> <td bgcolor="#ffeeee"> 325/70-17
 d=34.91
w=8.96
+10.31% </td> <td bgcolor="#ffeeee"> 325/75-17
 d=36.19
w=9.60
+14.36% </td> <td bgcolor="#ffeeee"> 325/80-17
 d=37.47
w=10.24
+18.40% </td> <td bgcolor="#ffcccc"> 325/85-17
 d=38.75
w=10.88
+22.44%</td></tr></tbody> </table>

Table for 18" based on a 265/75R16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">205</th> <td bgcolor="#ffcccc"> 205/30-18
 d=22.84
w=2.42
-27.83% </td> <td bgcolor="#ffcccc"> 205/35-18
 d=23.65
w=2.82
-25.28% </td> <td bgcolor="#ffcccc"> 205/40-18
 d=24.46
w=3.23
-22.73% </td> <td bgcolor="#ffcccc"> 205/45-18
 d=25.26
w=3.63
-20.18% </td> <td bgcolor="#ffeeee"> 205/50-18
 d=26.07
w=4.04
-17.63% </td> <td bgcolor="#ffeeee"> 205/55-18
 d=26.88
w=4.44
-15.08% </td> <td bgcolor="#ffeeee"> 205/60-18
 d=27.69
w=4.84
-12.53% </td> <td> 205/65-18
 d=28.49
w=5.25
-9.98% </td> <td> 205/70-18
 d=29.30
w=5.65
-7.43% </td> <td> 205/75-18
 d=30.11
w=6.05
-4.88% </td> <td bgcolor="#ccffcc"> 205/80-18
 d=30.91
w=6.46
-2.33% </td> <td bgcolor="#88ff88"> 205/85-18
 d=31.72
w=6.86
+0.22% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">215</th> <td bgcolor="#ffcccc"> 215/30-18
 d=23.08
w=2.54
-27.08% </td> <td bgcolor="#ffcccc"> 215/35-18
 d=23.93
w=2.96
-24.41% </td> <td bgcolor="#ffcccc"> 215/40-18
 d=24.77
w=3.39
-21.73% </td> <td bgcolor="#ffeeee"> 215/45-18
 d=25.62
w=3.81
-19.06% </td> <td bgcolor="#ffeeee"> 215/50-18
 d=26.46
w=4.23
-16.38% </td> <td bgcolor="#ffeeee"> 215/55-18
 d=27.31
w=4.66
-13.71% </td> <td bgcolor="#ffeeee"> 215/60-18
 d=28.16
w=5.08
-11.03% </td> <td> 215/65-18
 d=29.00
w=5.50
-8.36% </td> <td> 215/70-18
 d=29.85
w=5.93
-5.68% </td> <td bgcolor="#eeffee"> 215/75-18
 d=30.70
w=6.35
-3.01% </td> <td bgcolor="#88ff88"> 215/80-18
 d=31.54
w=6.77
-0.34% </td> <td bgcolor="#ccffcc"> 215/85-18
 d=32.39
w=7.19
+2.34% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffcccc"> 225/30-18
 d=23.31
w=2.66
-26.33% </td> <td bgcolor="#ffcccc"> 225/35-18
 d=24.20
w=3.10
-23.54% </td> <td bgcolor="#ffcccc"> 225/40-18
 d=25.09
w=3.54
-20.74% </td> <td bgcolor="#ffeeee"> 225/45-18
 d=25.97
w=3.99
-17.94% </td> <td bgcolor="#ffeeee"> 225/50-18
 d=26.86
w=4.43
-15.14% </td> <td bgcolor="#ffeeee"> 225/55-18
 d=27.74
w=4.87
-12.34% </td> <td> 225/60-18
 d=28.63
w=5.31
-9.54% </td> <td> 225/65-18
 d=29.52
w=5.76
-6.74% </td> <td bgcolor="#eeffee"> 225/70-18
 d=30.40
w=6.20
-3.94% </td> <td bgcolor="#aaffaa"> 225/75-18
 d=31.29
w=6.64
-1.14% </td> <td bgcolor="#aaffaa"> 225/80-18
 d=32.17
w=7.09
+1.65% </td> <td> 225/85-18
 d=33.06
w=7.53
+4.45% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffcccc"> 235/30-18
 d=23.55
w=2.78
-25.59% </td> <td bgcolor="#ffcccc"> 235/35-18
 d=24.48
w=3.24
-22.66% </td> <td bgcolor="#ffeeee"> 235/40-18
 d=25.40
w=3.70
-19.74% </td> <td bgcolor="#ffeeee"> 235/45-18
 d=26.33
w=4.16
-16.82% </td> <td bgcolor="#ffeeee"> 235/50-18
 d=27.25
w=4.63
-13.89% </td> <td bgcolor="#ffeeee"> 235/55-18
 d=28.18
w=5.09
-10.97% </td> <td> 235/60-18
 d=29.10
w=5.55
-8.05% </td> <td> 235/65-18
 d=30.03
w=6.01
-5.13% </td> <td bgcolor="#ccffcc"> 235/70-18
 d=30.95
w=6.48
-2.20% </td> <td bgcolor="#88ff88"> 235/75-18
 d=31.88
w=6.94
+0.72% </td> <td bgcolor="#eeffee"> 235/80-18
 d=32.80
w=7.40
+3.64% </td> <td> 235/85-18
 d=33.73
w=7.86
+6.57% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffcccc"> 245/30-18
 d=23.79
w=2.89
-24.84% </td> <td bgcolor="#ffcccc"> 245/35-18
 d=24.75
w=3.38
-21.79% </td> <td bgcolor="#ffeeee"> 245/40-18
 d=25.72
w=3.86
-18.75% </td> <td bgcolor="#ffeeee"> 245/45-18
 d=26.68
w=4.34
-15.70% </td> <td bgcolor="#ffeeee"> 245/50-18
 d=27.65
w=4.82
-12.65% </td> <td> 245/55-18
 d=28.61
w=5.31
-9.60% </td> <td> 245/60-18
 d=29.57
w=5.79
-6.56% </td> <td bgcolor="#eeffee"> 245/65-18
 d=30.54
w=6.27
-3.51% </td> <td bgcolor="#88ff88"> 245/70-18
 d=31.50
w=6.75
-0.46% </td> <td bgcolor="#ccffcc"> 245/75-18
 d=32.47
w=7.23
+2.59% </td> <td> 245/80-18
 d=33.43
w=7.72
+5.64% </td> <td> 245/85-18
 d=34.40
w=8.20
+8.68% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffcccc"> 255/30-18
 d=24.02
w=3.01
-24.10% </td> <td bgcolor="#ffcccc"> 255/35-18
 d=25.03
w=3.51
-20.92% </td> <td bgcolor="#ffeeee"> 255/40-18
 d=26.03
w=4.02
-17.75% </td> <td bgcolor="#ffeeee"> 255/45-18
 d=27.04
w=4.52
-14.58% </td> <td bgcolor="#ffeeee"> 255/50-18
 d=28.04
w=5.02
-11.41% </td> <td> 255/55-18
 d=29.04
w=5.52
-8.23% </td> <td> 255/60-18
 d=30.05
w=6.02
-5.06% </td> <td bgcolor="#aaffaa"> 255/65-18
 d=31.05
w=6.53
-1.89% </td> <td bgcolor="#aaffaa"> 255/70-18
 d=32.06
w=7.03
+1.28% </td> <td> 255/75-18
 d=33.06
w=7.53
+4.45% </td> <td> 255/80-18
 d=34.06
w=8.03
+7.63% </td> <td bgcolor="#ffeeee"> 255/85-18
 d=35.07
w=8.53
+10.80% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffcccc"> 265/30-18
 d=24.26
w=3.13
-23.35% </td> <td bgcolor="#ffcccc"> 265/35-18
 d=25.30
w=3.65
-20.05% </td> <td bgcolor="#ffeeee"> 265/40-18
 d=26.35
w=4.17
-16.76% </td> <td bgcolor="#ffeeee"> 265/45-18
 d=27.39
w=4.69
-13.46% </td> <td bgcolor="#ffeeee"> 265/50-18
 d=28.43
w=5.22
-10.16% </td> <td> 265/55-18
 d=29.48
w=5.74
-6.87% </td> <td bgcolor="#eeffee"> 265/60-18
 d=30.52
w=6.26
-3.57% </td> <td bgcolor="#88ff88"> 265/65-18
 d=31.56
w=6.78
-0.27% </td> <td bgcolor="#eeffee"> 265/70-18
 d=32.61
w=7.30
+3.02% </td> <td> 265/75-18
 d=33.65
w=7.82
+6.32% </td> <td> 265/80-18
 d=34.69
w=8.35
+9.62% </td> <td bgcolor="#ffeeee"> 265/85-18
 d=35.74
w=8.87
+12.91% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffcccc"> 275/30-18
 d=24.50
w=3.25
-22.60% </td> <td bgcolor="#ffeeee"> 275/35-18
 d=25.58
w=3.79
-19.18% </td> <td bgcolor="#ffeeee"> 275/40-18
 d=26.66
w=4.33
-15.76% </td> <td bgcolor="#ffeeee"> 275/45-18
 d=27.74
w=4.87
-12.34% </td> <td> 275/50-18
 d=28.83
w=5.41
-8.92% </td> <td> 275/55-18
 d=29.91
w=5.95
-5.50% </td> <td bgcolor="#ccffcc"> 275/60-18
 d=30.99
w=6.50
-2.08% </td> <td bgcolor="#aaffaa"> 275/65-18
 d=32.07
w=7.04
+1.34% </td> <td> 275/70-18
 d=33.16
w=7.58
+4.76% </td> <td> 275/75-18
 d=34.24
w=8.12
+8.19% </td> <td bgcolor="#ffeeee"> 275/80-18
 d=35.32
w=8.66
+11.61% </td> <td bgcolor="#ffeeee"> 275/85-18
 d=36.41
w=9.20
+15.03% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffcccc"> 285/30-18
 d=24.73
w=3.37
-21.86% </td> <td bgcolor="#ffeeee"> 285/35-18
 d=25.85
w=3.93
-18.31% </td> <td bgcolor="#ffeeee"> 285/40-18
 d=26.98
w=4.49
-14.77% </td> <td bgcolor="#ffeeee"> 285/45-18
 d=28.10
w=5.05
-11.22% </td> <td> 285/50-18
 d=29.22
w=5.61
-7.68% </td> <td> 285/55-18
 d=30.34
w=6.17
-4.13% </td> <td bgcolor="#88ff88"> 285/60-18
 d=31.46
w=6.73
-0.58% </td> <td bgcolor="#ccffcc"> 285/65-18
 d=32.59
w=7.29
+2.96% </td> <td> 285/70-18
 d=33.71
w=7.85
+6.51% </td> <td bgcolor="#ffeeee"> 285/75-18
 d=34.83
w=8.42
+10.05% </td> <td bgcolor="#ffeeee"> 285/80-18
 d=35.95
w=8.98
+13.60% </td> <td bgcolor="#ffeeee"> 285/85-18
 d=37.07
w=9.54
+17.14% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffcccc"> 295/30-18
 d=24.97
w=3.48
-21.11% </td> <td bgcolor="#ffeeee"> 295/35-18
 d=26.13
w=4.06
-17.44% </td> <td bgcolor="#ffeeee"> 295/40-18
 d=27.29
w=4.65
-13.77% </td> <td bgcolor="#ffeeee"> 295/45-18
 d=28.45
w=5.23
-10.10% </td> <td> 295/50-18
 d=29.61
w=5.81
-6.43% </td> <td bgcolor="#ccffcc"> 295/55-18
 d=30.78
w=6.39
-2.76% </td> <td bgcolor="#88ff88"> 295/60-18
 d=31.94
w=6.97
+0.91% </td> <td> 295/65-18
 d=33.10
w=7.55
+4.58% </td> <td> 295/70-18
 d=34.26
w=8.13
+8.25% </td> <td bgcolor="#ffeeee"> 295/75-18
 d=35.42
w=8.71
+11.92% </td> <td bgcolor="#ffeeee"> 295/80-18
 d=36.58
w=9.29
+15.59% </td> <td bgcolor="#ffeeee"> 295/85-18
 d=37.74
w=9.87
+19.26% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffcccc"> 305/30-18
 d=25.20
w=3.60
-20.36% </td> <td bgcolor="#ffeeee"> 305/35-18
 d=26.41
w=4.20
-16.57% </td> <td bgcolor="#ffeeee"> 305/40-18
 d=27.61
w=4.80
-12.78% </td> <td> 305/45-18
 d=28.81
w=5.40
-8.98% </td> <td> 305/50-18
 d=30.01
w=6.00
-5.19% </td> <td bgcolor="#aaffaa"> 305/55-18
 d=31.21
w=6.60
-1.39% </td> <td bgcolor="#ccffcc"> 305/60-18
 d=32.41
w=7.20
+2.40% </td> <td> 305/65-18
 d=33.61
w=7.81
+6.19% </td> <td> 305/70-18
 d=34.81
w=8.41
+9.99% </td> <td bgcolor="#ffeeee"> 305/75-18
 d=36.01
w=9.01
+13.78% </td> <td bgcolor="#ffeeee"> 305/80-18
 d=37.21
w=9.61
+17.58% </td> <td bgcolor="#ffcccc"> 305/85-18
 d=38.41
w=10.21
+21.37% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffeeee"> 315/30-18
 d=25.44
w=3.72
-19.62% </td> <td bgcolor="#ffeeee"> 315/35-18
 d=26.68
w=4.34
-15.70% </td> <td bgcolor="#ffeeee"> 315/40-18
 d=27.92
w=4.96
-11.78% </td> <td> 315/45-18
 d=29.16
w=5.58
-7.86% </td> <td bgcolor="#eeffee"> 315/50-18
 d=30.40
w=6.20
-3.94% </td> <td bgcolor="#88ff88"> 315/55-18
 d=31.64
w=6.82
-0.02% </td> <td bgcolor="#eeffee"> 315/60-18
 d=32.88
w=7.44
+3.89% </td> <td> 315/65-18
 d=34.12
w=8.06
+7.81% </td> <td bgcolor="#ffeeee"> 315/70-18
 d=35.36
w=8.68
+11.73% </td> <td bgcolor="#ffeeee"> 315/75-18
 d=36.60
w=9.30
+15.65% </td> <td bgcolor="#ffeeee"> 315/80-18
 d=37.84
w=9.92
+19.57% </td> <td bgcolor="#ffcccc"> 315/85-18
 d=39.08
w=10.54
+23.49% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffeeee"> 325/30-18
 d=25.68
w=3.84
-18.87% </td> <td bgcolor="#ffeeee"> 325/35-18
 d=26.96
w=4.48
-14.83% </td> <td bgcolor="#ffeeee"> 325/40-18
 d=28.24
w=5.12
-10.78% </td> <td> 325/45-18
 d=29.52
w=5.76
-6.74% </td> <td bgcolor="#ccffcc"> 325/50-18
 d=30.80
w=6.40
-2.70% </td> <td bgcolor="#aaffaa"> 325/55-18
 d=32.07
w=7.04
+1.34% </td> <td> 325/60-18
 d=33.35
w=7.68
+5.39% </td> <td> 325/65-18
 d=34.63
w=8.32
+9.43% </td> <td bgcolor="#ffeeee"> 325/70-18
 d=35.91
w=8.96
+13.47% </td> <td bgcolor="#ffeeee"> 325/75-18
 d=37.19
w=9.60
+17.51% </td> <td bgcolor="#ffcccc"> 325/80-18
 d=38.47
w=10.24
+21.56% </td> <td bgcolor="#ffcccc"> 325/85-18
 d=39.75
w=10.88
+25.60%</td></tr></tbody> </table>

Table for 20" based on a 265/75R16:

<table border="1" cellpadding="2" cellspacing="0" width="100%"> <tbody><tr valign="baseline"><th bgcolor="#eeeeee">225</th> <td bgcolor="#ffcccc"> 225/30-20
 d=25.31
w=2.66
-20.01% </td> <td bgcolor="#ffeeee"> 225/35-20
 d=26.20
w=3.10
-17.22% </td> <td bgcolor="#ffeeee"> 225/40-20
 d=27.09
w=3.54
-14.42% </td> <td bgcolor="#ffeeee"> 225/45-20
 d=27.97
w=3.99
-11.62% </td> <td> 225/50-20
 d=28.86
w=4.43
-8.82% </td> <td> 225/55-20
 d=29.74
w=4.87
-6.02% </td> <td bgcolor="#eeffee"> 225/60-20
 d=30.63
w=5.31
-3.22% </td> <td bgcolor="#88ff88"> 225/65-20
 d=31.52
w=5.76
-0.42% </td> <td bgcolor="#ccffcc"> 225/70-20
 d=32.40
w=6.20
+2.38% </td> <td> 225/75-20
 d=33.29
w=6.64
+5.17% </td> <td> 225/80-20
 d=34.17
w=7.09
+7.97% </td> <td bgcolor="#ffeeee"> 225/85-20
 d=35.06
w=7.53
+10.77% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">235</th> <td bgcolor="#ffeeee"> 235/30-20
 d=25.55
w=2.78
-19.27% </td> <td bgcolor="#ffeeee"> 235/35-20
 d=26.48
w=3.24
-16.35% </td> <td bgcolor="#ffeeee"> 235/40-20
 d=27.40
w=3.70
-13.42% </td> <td bgcolor="#ffeeee"> 235/45-20
 d=28.33
w=4.16
-10.50% </td> <td> 235/50-20
 d=29.25
w=4.63
-7.58% </td> <td> 235/55-20
 d=30.18
w=5.09
-4.65% </td> <td bgcolor="#aaffaa"> 235/60-20
 d=31.10
w=5.55
-1.73% </td> <td bgcolor="#aaffaa"> 235/65-20
 d=32.03
w=6.01
+1.19% </td> <td> 235/70-20
 d=32.95
w=6.48
+4.12% </td> <td> 235/75-20
 d=33.88
w=6.94
+7.04% </td> <td> 235/80-20
 d=34.80
w=7.40
+9.96% </td> <td bgcolor="#ffeeee"> 235/85-20
 d=35.73
w=7.86
+12.89% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">245</th> <td bgcolor="#ffeeee"> 245/30-20
 d=25.79
w=2.89
-18.52% </td> <td bgcolor="#ffeeee"> 245/35-20
 d=26.75
w=3.38
-15.47% </td> <td bgcolor="#ffeeee"> 245/40-20
 d=27.72
w=3.86
-12.43% </td> <td> 245/45-20
 d=28.68
w=4.34
-9.38% </td> <td> 245/50-20
 d=29.65
w=4.82
-6.33% </td> <td bgcolor="#eeffee"> 245/55-20
 d=30.61
w=5.31
-3.28% </td> <td bgcolor="#88ff88"> 245/60-20
 d=31.57
w=5.79
-0.24% </td> <td bgcolor="#ccffcc"> 245/65-20
 d=32.54
w=6.27
+2.81% </td> <td> 245/70-20
 d=33.50
w=6.75
+5.86% </td> <td> 245/75-20
 d=34.47
w=7.23
+8.91% </td> <td bgcolor="#ffeeee"> 245/80-20
 d=35.43
w=7.72
+11.95% </td> <td bgcolor="#ffeeee"> 245/85-20
 d=36.40
w=8.20
+15.00% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">255</th> <td bgcolor="#ffeeee"> 255/30-20
 d=26.02
w=3.01
-17.78% </td> <td bgcolor="#ffeeee"> 255/35-20
 d=27.03
w=3.51
-14.60% </td> <td bgcolor="#ffeeee"> 255/40-20
 d=28.03
w=4.02
-11.43% </td> <td> 255/45-20
 d=29.04
w=4.52
-8.26% </td> <td> 255/50-20
 d=30.04
w=5.02
-5.09% </td> <td bgcolor="#aaffaa"> 255/55-20
 d=31.04
w=5.52
-1.92% </td> <td bgcolor="#aaffaa"> 255/60-20
 d=32.05
w=6.02
+1.26% </td> <td> 255/65-20
 d=33.05
w=6.53
+4.43% </td> <td> 255/70-20
 d=34.06
w=7.03
+7.60% </td> <td bgcolor="#ffeeee"> 255/75-20
 d=35.06
w=7.53
+10.77% </td> <td bgcolor="#ffeeee"> 255/80-20
 d=36.06
w=8.03
+13.94% </td> <td bgcolor="#ffeeee"> 255/85-20
 d=37.07
w=8.53
+17.12% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">265</th> <td bgcolor="#ffeeee"> 265/30-20
 d=26.26
w=3.13
-17.03% </td> <td bgcolor="#ffeeee"> 265/35-20
 d=27.30
w=3.65
-13.73% </td> <td bgcolor="#ffeeee"> 265/40-20
 d=28.35
w=4.17
-10.44% </td> <td> 265/45-20
 d=29.39
w=4.69
-7.14% </td> <td bgcolor="#eeffee"> 265/50-20
 d=30.43
w=5.22
-3.84% </td> <td bgcolor="#88ff88"> 265/55-20
 d=31.48
w=5.74
-0.55% </td> <td bgcolor="#ccffcc"> 265/60-20
 d=32.52
w=6.26
+2.75% </td> <td> 265/65-20
 d=33.56
w=6.78
+6.05% </td> <td> 265/70-20
 d=34.61
w=7.30
+9.34% </td> <td bgcolor="#ffeeee"> 265/75-20
 d=35.65
w=7.82
+12.64% </td> <td bgcolor="#ffeeee"> 265/80-20
 d=36.69
w=8.35
+15.93% </td> <td bgcolor="#ffeeee"> 265/85-20
 d=37.74
w=8.87
+19.23% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">275</th> <td bgcolor="#ffeeee"> 275/30-20
 d=26.50
w=3.25
-16.28% </td> <td bgcolor="#ffeeee"> 275/35-20
 d=27.58
w=3.79
-12.86% </td> <td> 275/40-20
 d=28.66
w=4.33
-9.44% </td> <td> 275/45-20
 d=29.74
w=4.87
-6.02% </td> <td bgcolor="#ccffcc"> 275/50-20
 d=30.83
w=5.41
-2.60% </td> <td bgcolor="#88ff88"> 275/55-20
 d=31.91
w=5.95
+0.82% </td> <td> 275/60-20
 d=32.99
w=6.50
+4.24% </td> <td> 275/65-20
 d=34.07
w=7.04
+7.66% </td> <td bgcolor="#ffeeee"> 275/70-20
 d=35.16
w=7.58
+11.08% </td> <td bgcolor="#ffeeee"> 275/75-20
 d=36.24
w=8.12
+14.50% </td> <td bgcolor="#ffeeee"> 275/80-20
 d=37.32
w=8.66
+17.93% </td> <td bgcolor="#ffcccc"> 275/85-20
 d=38.41
w=9.20
+21.35% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">285</th> <td bgcolor="#ffeeee"> 285/30-20
 d=26.73
w=3.37
-15.54% </td> <td bgcolor="#ffeeee"> 285/35-20
 d=27.85
w=3.93
-11.99% </td> <td> 285/40-20
 d=28.98
w=4.49
-8.45% </td> <td> 285/45-20
 d=30.10
w=5.05
-4.90% </td> <td bgcolor="#aaffaa"> 285/50-20
 d=31.22
w=5.61
-1.36% </td> <td bgcolor="#ccffcc"> 285/55-20
 d=32.34
w=6.17
+2.19% </td> <td> 285/60-20
 d=33.46
w=6.73
+5.73% </td> <td> 285/65-20
 d=34.59
w=7.29
+9.28% </td> <td bgcolor="#ffeeee"> 285/70-20
 d=35.71
w=7.85
+12.82% </td> <td bgcolor="#ffeeee"> 285/75-20
 d=36.83
w=8.42
+16.37% </td> <td bgcolor="#ffeeee"> 285/80-20
 d=37.95
w=8.98
+19.92% </td> <td bgcolor="#ffcccc"> 285/85-20
 d=39.07
w=9.54
+23.46% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">295</th> <td bgcolor="#ffeeee"> 295/30-20
 d=26.97
w=3.48
-14.79% </td> <td bgcolor="#ffeeee"> 295/35-20
 d=28.13
w=4.06
-11.12% </td> <td> 295/40-20
 d=29.29
w=4.65
-7.45% </td> <td bgcolor="#eeffee"> 295/45-20
 d=30.45
w=5.23
-3.78% </td> <td bgcolor="#88ff88"> 295/50-20
 d=31.61
w=5.81
-0.11% </td> <td bgcolor="#eeffee"> 295/55-20
 d=32.78
w=6.39
+3.56% </td> <td> 295/60-20
 d=33.94
w=6.97
+7.23% </td> <td bgcolor="#ffeeee"> 295/65-20
 d=35.10
w=7.55
+10.90% </td> <td bgcolor="#ffeeee"> 295/70-20
 d=36.26
w=8.13
+14.57% </td> <td bgcolor="#ffeeee"> 295/75-20
 d=37.42
w=8.71
+18.24% </td> <td bgcolor="#ffcccc"> 295/80-20
 d=38.58
w=9.29
+21.91% </td> <td bgcolor="#ffcccc"> 295/85-20
 d=39.74
w=9.87
+25.58% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">305</th> <td bgcolor="#ffeeee"> 305/30-20
 d=27.20
w=3.60
-14.04% </td> <td bgcolor="#ffeeee"> 305/35-20
 d=28.41
w=4.20
-10.25% </td> <td> 305/40-20
 d=29.61
w=4.80
-6.46% </td> <td bgcolor="#ccffcc"> 305/45-20
 d=30.81
w=5.40
-2.66% </td> <td bgcolor="#aaffaa"> 305/50-20
 d=32.01
w=6.00
+1.13% </td> <td> 305/55-20
 d=33.21
w=6.60
+4.93% </td> <td> 305/60-20
 d=34.41
w=7.20
+8.72% </td> <td bgcolor="#ffeeee"> 305/65-20
 d=35.61
w=7.81
+12.51% </td> <td bgcolor="#ffeeee"> 305/70-20
 d=36.81
w=8.41
+16.31% </td> <td bgcolor="#ffcccc"> 305/75-20
 d=38.01
w=9.01
+20.10% </td> <td bgcolor="#ffcccc"> 305/80-20
 d=39.21
w=9.61
+23.90% </td> <td bgcolor="#ffcccc"> 305/85-20
 d=40.41
w=10.21
+27.69% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">315</th> <td bgcolor="#ffeeee"> 315/30-20
 d=27.44
w=3.72
-13.30% </td> <td> 315/35-20
 d=28.68
w=4.34
-9.38% </td> <td> 315/40-20
 d=29.92
w=4.96
-5.46% </td> <td bgcolor="#aaffaa"> 315/45-20
 d=31.16
w=5.58
-1.54% </td> <td bgcolor="#ccffcc"> 315/50-20
 d=32.40
w=6.20
+2.38% </td> <td> 315/55-20
 d=33.64
w=6.82
+6.29% </td> <td bgcolor="#ffeeee"> 315/60-20
 d=34.88
w=7.44
+10.21% </td> <td bgcolor="#ffeeee"> 315/65-20
 d=36.12
w=8.06
+14.13% </td> <td bgcolor="#ffeeee"> 315/70-20
 d=37.36
w=8.68
+18.05% </td> <td bgcolor="#ffcccc"> 315/75-20
 d=38.60
w=9.30
+21.97% </td> <td bgcolor="#ffcccc"> 315/80-20
 d=39.84
w=9.92
+25.89% </td> <td bgcolor="#ffcccc"> 315/85-20
 d=41.08
w=10.54
+29.80% </td> </tr> <tr valign="baseline"><th bgcolor="#eeeeee">325</th> <td bgcolor="#ffeeee"> 325/30-20
 d=27.68
w=3.84
-12.55% </td> <td> 325/35-20
 d=28.96
w=4.48
-8.51% </td> <td> 325/40-20
 d=30.24
w=5.12
-4.47% </td> <td bgcolor="#88ff88"> 325/45-20
 d=31.52
w=5.76
-0.42% </td> <td bgcolor="#eeffee"> 325/50-20
 d=32.80
w=6.40
+3.62% </td> <td> 325/55-20
 d=34.07
w=7.04
+7.66% </td> <td bgcolor="#ffeeee"> 325/60-20
 d=35.35
w=7.68
+11.71% </td> <td bgcolor="#ffeeee"> 325/65-20
 d=36.63
w=8.32
+15.75% </td> <td bgcolor="#ffeeee"> 325/70-20
 d=37.91
w=8.96
+19.79% </td> <td bgcolor="#ffcccc"> 325/75-20
 d=39.19
w=9.60
+23.83% </td> <td bgcolor="#ffcccc"> 325/80-20
 d=40.47
w=10.24
+27.88% </td> <td bgcolor="#ffaaaa"> 325/85-20
 d=41.75
w=10.88
+31.92%</td></tr></tbody> </table>

Diesel Dually

01-03-2005, 03:59 PM

Great info...but we start with 215's and 235's may have contact problems under load.

Otherwise in the voice of the Guiness guys "BRILLIANT!'

Lennart

01-03-2005, 04:37 PM

Added the sizes down to 205´s

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