Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 125/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 24.87 (631.8) | -0.12 (-3) -0.5% |
| Width inches (mm) | 5.71 (145) | 4.92 (125) | -0.79 (-20) -13.8% |
| Circum. inches (mm) | 78.52 (1994.28) | 78.14 (1984.86) | -0.37 (-9.42) -0.5% |
| Sidewall Height inches (mm) | 4 (101.5) | 3.94 (100) | -0.06 (-1.5) -1.5% |
| Revolutions per mile (km) | 806.98 (501.43) | 810.81 (503.81) | 3.83 (2.38) 0.5% |
125/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.91 mph (32.03 km/h) |
| 25 mph (40.23 km/h) | 24.88 mph (40.04 km/h) |
| 30 mph (48.28 km/h) | 29.86 mph (48.05 km/h) |
| 35 mph (56.33 km/h) | 34.83 mph (56.06 km/h) |
| 40 mph (64.37 km/h) | 39.81 mph (64.07 km/h) |
| 45 mph (72.42 km/h) | 44.79 mph (72.08 km/h) |
| 50 mph (80.47 km/h) | 49.76 mph (80.09 km/h) |
| 55 mph (88.51 km/h) | 54.74 mph (88.1 km/h) |
| 60 mph (96.56 km/h) | 59.72 mph (96.1 km/h) |
| 65 mph (104.61 km/h) | 64.69 mph (104.11 km/h) |
| 70 mph (112.65 km/h) | 69.67 mph (112.12 km/h) |
| 75 mph (120.7 km/h) | 74.65 mph (120.13 km/h) |
| 80 mph (128.75 km/h) | 79.62 mph (128.14 km/h) |
| 85 mph (136.79 km/h) | 84.6 mph (136.15 km/h) |
| 90 mph (144.84 km/h) | 89.57 mph (144.16 km/h) |
| 95 mph (152.89 km/h) | 94.55 mph (152.17 km/h) |
| 100 mph (160.93 km/h) | 99.53 mph (160.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2063 | 2397 | 2581 | 2696 | 2818 | 2906 | 3003 | 3117 | 3275 | 3433 | 3609 | 3749 | 4004 | 4285 | 4504 | 4645 | 4724 | 5014 | 5417 | 6295 |
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