Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-22.5 | 305/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.34 (1075.5) | 39.31 (998.5) | -3.03 (-77) -7.2% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 133.02 (3378.78) | 123.5 (3136.88) | -9.52 (-241.9) -7.2% |
| Sidewall Height inches (mm) | 9.92 (252) | 8.41 (213.5) | -1.52 (-38.5) -15.3% |
| Revolutions per mile (km) | 476.31 (295.96) | 513.04 (318.79) | 36.73 (22.82) 7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.57 mph (29.88 km/h) |
| 25 mph (40.23 km/h) | 23.21 mph (37.35 km/h) |
| 30 mph (48.28 km/h) | 27.85 mph (44.82 km/h) |
| 35 mph (56.33 km/h) | 32.49 mph (52.29 km/h) |
| 40 mph (64.37 km/h) | 37.14 mph (59.77 km/h) |
| 45 mph (72.42 km/h) | 41.78 mph (67.24 km/h) |
| 50 mph (80.47 km/h) | 46.42 mph (74.71 km/h) |
| 55 mph (88.51 km/h) | 51.06 mph (82.18 km/h) |
| 60 mph (96.56 km/h) | 55.7 mph (89.65 km/h) |
| 65 mph (104.61 km/h) | 60.35 mph (97.12 km/h) |
| 70 mph (112.65 km/h) | 64.99 mph (104.59 km/h) |
| 75 mph (120.7 km/h) | 69.63 mph (112.06 km/h) |
| 80 mph (128.75 km/h) | 74.27 mph (119.53 km/h) |
| 85 mph (136.79 km/h) | 78.91 mph (127 km/h) |
| 90 mph (144.84 km/h) | 83.56 mph (134.47 km/h) |
| 95 mph (152.89 km/h) | 88.2 mph (141.94 km/h) |
| 100 mph (160.93 km/h) | 92.84 mph (149.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1306 | 1517 | 1633 | 1706 | 1783 | 1839 | 1900 | 1972 | 2072 | 2172 | 2283 | 2372 | 2533 | 2711 | 2850 | 2939 | 2989 | 3172 | 3428 | 3983 |
Better Fuel Economy Factory Ratios Increased Power
