Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.16 (816.8) | 32.71 (830.8) | 0.55 (14) 1.7% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 101.03 (2566.05) | 102.76 (2610.04) | 1.73 (43.98) 1.7% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 7.85 (199.5) | 0.28 (7) 3.6% |
| Revolutions per mile (km) | 627.17 (389.7) | 616.6 (383.14) | -10.57 (-6.57) -1.7% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.34 mph (32.74 km/h) |
| 25 mph (40.23 km/h) | 25.43 mph (40.92 km/h) |
| 30 mph (48.28 km/h) | 30.51 mph (49.11 km/h) |
| 35 mph (56.33 km/h) | 35.6 mph (57.29 km/h) |
| 40 mph (64.37 km/h) | 40.69 mph (65.48 km/h) |
| 45 mph (72.42 km/h) | 45.77 mph (73.66 km/h) |
| 50 mph (80.47 km/h) | 50.86 mph (81.85 km/h) |
| 55 mph (88.51 km/h) | 55.94 mph (90.03 km/h) |
| 60 mph (96.56 km/h) | 61.03 mph (98.22 km/h) |
| 65 mph (104.61 km/h) | 66.11 mph (106.4 km/h) |
| 70 mph (112.65 km/h) | 71.2 mph (114.59 km/h) |
| 75 mph (120.7 km/h) | 76.29 mph (122.77 km/h) |
| 80 mph (128.75 km/h) | 81.37 mph (130.95 km/h) |
| 85 mph (136.79 km/h) | 86.46 mph (139.14 km/h) |
| 90 mph (144.84 km/h) | 91.54 mph (147.32 km/h) |
| 95 mph (152.89 km/h) | 96.63 mph (155.51 km/h) |
| 100 mph (160.93 km/h) | 101.71 mph (163.69 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
