Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-17 | 125/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.44 (620.8) | 24.89 (632.2) | 0.45 (11.4) 1.8% |
| Width inches (mm) | 5.31 (135) | 4.92 (125) | -0.39 (-10) -7.4% |
| Circum. inches (mm) | 76.78 (1950.3) | 78.19 (1986.11) | 1.41 (35.81) 1.8% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 3.44 (87.5) | -0.28 (-7) -7.4% |
| Revolutions per mile (km) | 825.18 (512.74) | 810.3 (503.49) | -14.88 (-9.25) -1.8% |
125/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.78 km/h) |
| 25 mph (40.23 km/h) | 25.46 mph (40.97 km/h) |
| 30 mph (48.28 km/h) | 30.55 mph (49.17 km/h) |
| 35 mph (56.33 km/h) | 35.64 mph (57.36 km/h) |
| 40 mph (64.37 km/h) | 40.73 mph (65.56 km/h) |
| 45 mph (72.42 km/h) | 45.83 mph (73.75 km/h) |
| 50 mph (80.47 km/h) | 50.92 mph (81.95 km/h) |
| 55 mph (88.51 km/h) | 56.01 mph (90.14 km/h) |
| 60 mph (96.56 km/h) | 61.1 mph (98.33 km/h) |
| 65 mph (104.61 km/h) | 66.19 mph (106.53 km/h) |
| 70 mph (112.65 km/h) | 71.29 mph (114.72 km/h) |
| 75 mph (120.7 km/h) | 76.38 mph (122.92 km/h) |
| 80 mph (128.75 km/h) | 81.47 mph (131.11 km/h) |
| 85 mph (136.79 km/h) | 86.56 mph (139.31 km/h) |
| 90 mph (144.84 km/h) | 91.65 mph (147.5 km/h) |
| 95 mph (152.89 km/h) | 96.74 mph (155.7 km/h) |
| 100 mph (160.93 km/h) | 101.84 mph (163.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2062 | 2395 | 2580 | 2694 | 2817 | 2904 | 3001 | 3115 | 3273 | 3431 | 3606 | 3747 | 4001 | 4282 | 4501 | 4642 | 4721 | 5010 | 5414 | 6291 |
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