Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/45-18 | 135/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.33 (668.7) | 25.5 (647.8) | -0.82 (-20.9) -3.1% |
| Width inches (mm) | 9.25 (235) | 5.31 (135) | -3.94 (-100) -42.6% |
| Circum. inches (mm) | 82.71 (2100.78) | 80.12 (2035.12) | -2.59 (-65.66) -3.1% |
| Sidewall Height inches (mm) | 4.16 (105.75) | 4.25 (108) | 0.09 (2.25) 2.1% |
| Revolutions per mile (km) | 766.07 (476.01) | 790.78 (491.37) | 24.72 (15.36) 3.2% |
135/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.37 mph (31.18 km/h) |
| 25 mph (40.23 km/h) | 24.22 mph (38.98 km/h) |
| 30 mph (48.28 km/h) | 29.06 mph (46.77 km/h) |
| 35 mph (56.33 km/h) | 33.91 mph (54.57 km/h) |
| 40 mph (64.37 km/h) | 38.75 mph (62.36 km/h) |
| 45 mph (72.42 km/h) | 43.59 mph (70.16 km/h) |
| 50 mph (80.47 km/h) | 48.44 mph (77.95 km/h) |
| 55 mph (88.51 km/h) | 53.28 mph (85.75 km/h) |
| 60 mph (96.56 km/h) | 58.12 mph (93.54 km/h) |
| 65 mph (104.61 km/h) | 62.97 mph (101.34 km/h) |
| 70 mph (112.65 km/h) | 67.81 mph (109.13 km/h) |
| 75 mph (120.7 km/h) | 72.66 mph (116.93 km/h) |
| 80 mph (128.75 km/h) | 77.5 mph (124.72 km/h) |
| 85 mph (136.79 km/h) | 82.34 mph (132.52 km/h) |
| 90 mph (144.84 km/h) | 87.19 mph (140.31 km/h) |
| 95 mph (152.89 km/h) | 92.03 mph (148.11 km/h) |
| 100 mph (160.93 km/h) | 96.87 mph (155.9 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012 | 2338 | 2518 | 2629 | 2749 | 2834 | 2929 | 3040 | 3194 | 3348 | 3520 | 3657 | 3905 | 4179 | 4393 | 4530 | 4607 | 4890 | 5284 | 6140 |
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