Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-17 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.06 (788.8) | 33.83 (859.3) | 2.78 (70.5) 8.9% |
| Width inches (mm) | 10.04 (255) | 11.22 (285) | 1.18 (30) 11.8% |
| Circum. inches (mm) | 97.56 (2478.09) | 106.28 (2699.57) | 8.72 (221.48) 8.9% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 8.42 (213.75) | 1.39 (35.25) 19.7% |
| Revolutions per mile (km) | 649.43 (403.54) | 596.15 (370.43) | -53.28 (-33.11) -8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.79 mph (35.06 km/h) |
| 25 mph (40.23 km/h) | 27.23 mph (43.83 km/h) |
| 30 mph (48.28 km/h) | 32.68 mph (52.6 km/h) |
| 35 mph (56.33 km/h) | 38.13 mph (61.36 km/h) |
| 40 mph (64.37 km/h) | 43.58 mph (70.13 km/h) |
| 45 mph (72.42 km/h) | 49.02 mph (78.89 km/h) |
| 50 mph (80.47 km/h) | 54.47 mph (87.66 km/h) |
| 55 mph (88.51 km/h) | 59.92 mph (96.43 km/h) |
| 60 mph (96.56 km/h) | 65.36 mph (105.19 km/h) |
| 65 mph (104.61 km/h) | 70.81 mph (113.96 km/h) |
| 70 mph (112.65 km/h) | 76.26 mph (122.72 km/h) |
| 75 mph (120.7 km/h) | 81.7 mph (131.49 km/h) |
| 80 mph (128.75 km/h) | 87.15 mph (140.25 km/h) |
| 85 mph (136.79 km/h) | 92.6 mph (149.02 km/h) |
| 90 mph (144.84 km/h) | 98.04 mph (157.79 km/h) |
| 95 mph (152.89 km/h) | 103.49 mph (166.55 km/h) |
| 100 mph (160.93 km/h) | 108.94 mph (175.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1517 | 1762 | 1898 | 1982 | 2072 | 2137 | 2208 | 2292 | 2408 | 2524 | 2653 | 2757 | 2944 | 3150 | 3312 | 3415 | 3473 | 3686 | 3983 | 4629 |
Better Fuel Economy Factory Ratios Increased Power
