Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.61 (802.8) | 32.71 (830.8) | 1.1 (28) 3.5% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 99.29 (2522.07) | 102.76 (2610.04) | 3.46 (87.96) 3.5% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 7.85 (199.5) | 0.55 (14) 7.5% |
| Revolutions per mile (km) | 638.1 (396.5) | 616.6 (383.14) | -21.51 (-13.36) -3.4% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.7 mph (33.31 km/h) |
| 25 mph (40.23 km/h) | 25.87 mph (41.64 km/h) |
| 30 mph (48.28 km/h) | 31.05 mph (49.96 km/h) |
| 35 mph (56.33 km/h) | 36.22 mph (58.29 km/h) |
| 40 mph (64.37 km/h) | 41.4 mph (66.62 km/h) |
| 45 mph (72.42 km/h) | 46.57 mph (74.95 km/h) |
| 50 mph (80.47 km/h) | 51.74 mph (83.27 km/h) |
| 55 mph (88.51 km/h) | 56.92 mph (91.6 km/h) |
| 60 mph (96.56 km/h) | 62.09 mph (99.93 km/h) |
| 65 mph (104.61 km/h) | 67.27 mph (108.26 km/h) |
| 70 mph (112.65 km/h) | 72.44 mph (116.58 km/h) |
| 75 mph (120.7 km/h) | 77.62 mph (124.91 km/h) |
| 80 mph (128.75 km/h) | 82.79 mph (133.24 km/h) |
| 85 mph (136.79 km/h) | 87.96 mph (141.57 km/h) |
| 90 mph (144.84 km/h) | 93.14 mph (149.89 km/h) |
| 95 mph (152.89 km/h) | 98.31 mph (158.22 km/h) |
| 100 mph (160.93 km/h) | 103.49 mph (166.55 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1569 | 1823 | 1963 | 2050 | 2143 | 2210 | 2284 | 2370 | 2491 | 2611 | 2744 | 2851 | 3045 | 3258 | 3425 | 3532 | 3592 | 3813 | 4120 | 4788 |
Better Fuel Economy Factory Ratios Increased Power
