Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-22.5 | 255/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.34 (1075.5) | 36.56 (928.5) | -5.79 (-147) -13.7% |
| Width inches (mm) | 12.4 (315) | 10.04 (255) | -2.36 (-60) -19% |
| Circum. inches (mm) | 133.02 (3378.78) | 114.84 (2916.97) | -18.18 (-461.81) -13.7% |
| Sidewall Height inches (mm) | 9.92 (252) | 7.03 (178.5) | -2.89 (-73.5) -29.2% |
| Revolutions per mile (km) | 476.31 (295.96) | 551.72 (342.82) | 75.41 (46.86) 15.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.27 mph (27.79 km/h) |
| 25 mph (40.23 km/h) | 21.58 mph (34.73 km/h) |
| 30 mph (48.28 km/h) | 25.9 mph (41.68 km/h) |
| 35 mph (56.33 km/h) | 30.22 mph (48.63 km/h) |
| 40 mph (64.37 km/h) | 34.53 mph (55.58 km/h) |
| 45 mph (72.42 km/h) | 38.85 mph (62.52 km/h) |
| 50 mph (80.47 km/h) | 43.17 mph (69.47 km/h) |
| 55 mph (88.51 km/h) | 47.48 mph (76.42 km/h) |
| 60 mph (96.56 km/h) | 51.8 mph (83.36 km/h) |
| 65 mph (104.61 km/h) | 56.12 mph (90.31 km/h) |
| 70 mph (112.65 km/h) | 60.43 mph (97.26 km/h) |
| 75 mph (120.7 km/h) | 64.75 mph (104.2 km/h) |
| 80 mph (128.75 km/h) | 69.07 mph (111.15 km/h) |
| 85 mph (136.79 km/h) | 73.38 mph (118.1 km/h) |
| 90 mph (144.84 km/h) | 77.7 mph (125.04 km/h) |
| 95 mph (152.89 km/h) | 82.02 mph (131.99 km/h) |
| 100 mph (160.93 km/h) | 86.33 mph (138.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1404 | 1631 | 1757 | 1834 | 1918 | 1978 | 2043 | 2121 | 2229 | 2336 | 2456 | 2551 | 2724 | 2916 | 3065 | 3161 | 3214 | 3411 | 3686 | 4284 |
Better Fuel Economy Factory Ratios Increased Power
