Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-16 | 125/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.57 (649.4) | 24.87 (631.8) | -0.69 (-17.6) -2.7% |
| Width inches (mm) | 5.31 (135) | 4.92 (125) | -0.39 (-10) -7.4% |
| Circum. inches (mm) | 80.32 (2040.15) | 78.14 (1984.86) | -2.18 (-55.29) -2.7% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 3.94 (100) | -0.85 (-21.5) -17.7% |
| Revolutions per mile (km) | 788.84 (490.16) | 810.81 (503.81) | 21.97 (13.65) 2.8% |
125/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.46 mph (31.31 km/h) |
| 25 mph (40.23 km/h) | 24.32 mph (39.14 km/h) |
| 30 mph (48.28 km/h) | 29.19 mph (46.97 km/h) |
| 35 mph (56.33 km/h) | 34.05 mph (54.8 km/h) |
| 40 mph (64.37 km/h) | 38.92 mph (62.63 km/h) |
| 45 mph (72.42 km/h) | 43.78 mph (70.46 km/h) |
| 50 mph (80.47 km/h) | 48.64 mph (78.29 km/h) |
| 55 mph (88.51 km/h) | 53.51 mph (86.12 km/h) |
| 60 mph (96.56 km/h) | 58.37 mph (93.94 km/h) |
| 65 mph (104.61 km/h) | 63.24 mph (101.77 km/h) |
| 70 mph (112.65 km/h) | 68.1 mph (109.6 km/h) |
| 75 mph (120.7 km/h) | 72.97 mph (117.43 km/h) |
| 80 mph (128.75 km/h) | 77.83 mph (125.26 km/h) |
| 85 mph (136.79 km/h) | 82.7 mph (133.09 km/h) |
| 90 mph (144.84 km/h) | 87.56 mph (140.92 km/h) |
| 95 mph (152.89 km/h) | 92.43 mph (148.74 km/h) |
| 100 mph (160.93 km/h) | 97.29 mph (156.57 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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