Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 285/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 34.95 (887.8) | 13.54 (344) 63.3% |
| Width inches (mm) | 3.15 (80) | 11.22 (285) | 8.07 (205) 256.3% |
| Circum. inches (mm) | 67.26 (1708.4) | 109.81 (2789.11) | 42.55 (1080.71) 63.3% |
| Sidewall Height inches (mm) | 2.2 (56) | 8.98 (228) | 6.77 (172) 307.1% |
| Revolutions per mile (km) | 942.02 (585.34) | 577.01 (358.54) | -365.01 (-226.81) -38.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 32.65 mph (52.55 km/h) |
| 25 mph (40.23 km/h) | 40.81 mph (65.68 km/h) |
| 30 mph (48.28 km/h) | 48.98 mph (78.82 km/h) |
| 35 mph (56.33 km/h) | 57.14 mph (91.96 km/h) |
| 40 mph (64.37 km/h) | 65.3 mph (105.1 km/h) |
| 45 mph (72.42 km/h) | 73.47 mph (118.23 km/h) |
| 50 mph (80.47 km/h) | 81.63 mph (131.37 km/h) |
| 55 mph (88.51 km/h) | 89.79 mph (144.51 km/h) |
| 60 mph (96.56 km/h) | 97.96 mph (157.64 km/h) |
| 65 mph (104.61 km/h) | 106.12 mph (170.78 km/h) |
| 70 mph (112.65 km/h) | 114.28 mph (183.92 km/h) |
| 75 mph (120.7 km/h) | 122.44 mph (197.05 km/h) |
| 80 mph (128.75 km/h) | 130.61 mph (210.19 km/h) |
| 85 mph (136.79 km/h) | 138.77 mph (223.33 km/h) |
| 90 mph (144.84 km/h) | 146.93 mph (236.47 km/h) |
| 95 mph (152.89 km/h) | 155.1 mph (249.6 km/h) |
| 100 mph (160.93 km/h) | 163.26 mph (262.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1468 | 1706 | 1837 | 1918 | 2006 | 2068 | 2137 | 2218 | 2331 | 2443 | 2568 | 2668 | 2849 | 3049 | 3205 | 3305 | 3362 | 3568 | 3855 | 4480 |
Better Fuel Economy Factory Ratios Increased Power
