Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-17 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.88 (809.8) | 33.83 (859.3) | 1.95 (49.5) 6.1% |
| Width inches (mm) | 10.63 (270) | 11.22 (285) | 0.59 (15) 5.6% |
| Circum. inches (mm) | 100.16 (2544.06) | 106.28 (2699.57) | 6.12 (155.51) 6.1% |
| Sidewall Height inches (mm) | 7.44 (189) | 8.42 (213.75) | 0.97 (24.75) 13.1% |
| Revolutions per mile (km) | 632.59 (393.07) | 596.15 (370.43) | -36.44 (-22.64) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.22 mph (34.15 km/h) |
| 25 mph (40.23 km/h) | 26.53 mph (42.69 km/h) |
| 30 mph (48.28 km/h) | 31.83 mph (51.23 km/h) |
| 35 mph (56.33 km/h) | 37.14 mph (59.77 km/h) |
| 40 mph (64.37 km/h) | 42.45 mph (68.31 km/h) |
| 45 mph (72.42 km/h) | 47.75 mph (76.85 km/h) |
| 50 mph (80.47 km/h) | 53.06 mph (85.39 km/h) |
| 55 mph (88.51 km/h) | 58.36 mph (93.92 km/h) |
| 60 mph (96.56 km/h) | 63.67 mph (102.46 km/h) |
| 65 mph (104.61 km/h) | 68.97 mph (111 km/h) |
| 70 mph (112.65 km/h) | 74.28 mph (119.54 km/h) |
| 75 mph (120.7 km/h) | 79.58 mph (128.08 km/h) |
| 80 mph (128.75 km/h) | 84.89 mph (136.62 km/h) |
| 85 mph (136.79 km/h) | 90.2 mph (145.16 km/h) |
| 90 mph (144.84 km/h) | 95.5 mph (153.69 km/h) |
| 95 mph (152.89 km/h) | 100.81 mph (162.23 km/h) |
| 100 mph (160.93 km/h) | 106.11 mph (170.77 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
