Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-15 | 275/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.71 (780) | 30.16 (766) | -0.55 (-14) -1.8% |
| Width inches (mm) | 11.22 (285) | 10.83 (275) | -0.39 (-10) -3.5% |
| Circum. inches (mm) | 96.47 (2450.44) | 94.74 (2406.46) | -1.73 (-43.98) -1.8% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 7.58 (192.5) | -0.28 (-7) -3.5% |
| Revolutions per mile (km) | 656.76 (408.09) | 668.76 (415.55) | 12 (7.46) 1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.64 mph (31.61 km/h) |
| 25 mph (40.23 km/h) | 24.55 mph (39.51 km/h) |
| 30 mph (48.28 km/h) | 29.46 mph (47.41 km/h) |
| 35 mph (56.33 km/h) | 34.37 mph (55.32 km/h) |
| 40 mph (64.37 km/h) | 39.28 mph (63.22 km/h) |
| 45 mph (72.42 km/h) | 44.19 mph (71.12 km/h) |
| 50 mph (80.47 km/h) | 49.1 mph (79.02 km/h) |
| 55 mph (88.51 km/h) | 54.01 mph (86.93 km/h) |
| 60 mph (96.56 km/h) | 58.92 mph (94.83 km/h) |
| 65 mph (104.61 km/h) | 63.83 mph (102.73 km/h) |
| 70 mph (112.65 km/h) | 68.74 mph (110.63 km/h) |
| 75 mph (120.7 km/h) | 73.65 mph (118.53 km/h) |
| 80 mph (128.75 km/h) | 78.56 mph (126.44 km/h) |
| 85 mph (136.79 km/h) | 83.47 mph (134.34 km/h) |
| 90 mph (144.84 km/h) | 88.38 mph (142.24 km/h) |
| 95 mph (152.89 km/h) | 93.29 mph (150.14 km/h) |
| 100 mph (160.93 km/h) | 98.21 mph (158.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1702 | 1977 | 2129 | 2223 | 2325 | 2397 | 2477 | 2571 | 2701 | 2832 | 2976 | 3092 | 3302 | 3534 | 3715 | 3831 | 3896 | 4135 | 4468 | 5193 |
Better Fuel Economy Factory Ratios Increased Power
