Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 33.83 (859.3) | 12.42 (315.5) 58% |
| Width inches (mm) | 3.15 (80) | 11.22 (285) | 8.07 (205) 256.3% |
| Circum. inches (mm) | 67.26 (1708.4) | 106.28 (2699.57) | 39.02 (991.17) 58% |
| Sidewall Height inches (mm) | 2.2 (56) | 8.42 (213.75) | 6.21 (157.75) 281.7% |
| Revolutions per mile (km) | 942.02 (585.34) | 596.15 (370.43) | -345.87 (-214.91) -36.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 31.6 mph (50.86 km/h) |
| 25 mph (40.23 km/h) | 39.5 mph (63.58 km/h) |
| 30 mph (48.28 km/h) | 47.41 mph (76.29 km/h) |
| 35 mph (56.33 km/h) | 55.31 mph (89.01 km/h) |
| 40 mph (64.37 km/h) | 63.21 mph (101.72 km/h) |
| 45 mph (72.42 km/h) | 71.11 mph (114.44 km/h) |
| 50 mph (80.47 km/h) | 79.01 mph (127.15 km/h) |
| 55 mph (88.51 km/h) | 86.91 mph (139.87 km/h) |
| 60 mph (96.56 km/h) | 94.81 mph (152.58 km/h) |
| 65 mph (104.61 km/h) | 102.71 mph (165.3 km/h) |
| 70 mph (112.65 km/h) | 110.61 mph (178.01 km/h) |
| 75 mph (120.7 km/h) | 118.51 mph (190.73 km/h) |
| 80 mph (128.75 km/h) | 126.41 mph (203.44 km/h) |
| 85 mph (136.79 km/h) | 134.32 mph (216.16 km/h) |
| 90 mph (144.84 km/h) | 142.22 mph (228.87 km/h) |
| 95 mph (152.89 km/h) | 150.12 mph (241.59 km/h) |
| 100 mph (160.93 km/h) | 158.02 mph (254.31 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
