Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-22.5 | 315/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.34 (1075.5) | 39.86 (1012.5) | -2.48 (-63) -5.9% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 133.02 (3378.78) | 125.23 (3180.86) | -7.79 (-197.92) -5.9% |
| Sidewall Height inches (mm) | 9.92 (252) | 8.68 (220.5) | -1.24 (-31.5) -12.5% |
| Revolutions per mile (km) | 476.31 (295.96) | 505.95 (314.38) | 29.64 (18.42) 6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.83 mph (30.3 km/h) |
| 25 mph (40.23 km/h) | 23.54 mph (37.88 km/h) |
| 30 mph (48.28 km/h) | 28.24 mph (45.45 km/h) |
| 35 mph (56.33 km/h) | 32.95 mph (53.03 km/h) |
| 40 mph (64.37 km/h) | 37.66 mph (60.6 km/h) |
| 45 mph (72.42 km/h) | 42.36 mph (68.18 km/h) |
| 50 mph (80.47 km/h) | 47.07 mph (75.75 km/h) |
| 55 mph (88.51 km/h) | 51.78 mph (83.33 km/h) |
| 60 mph (96.56 km/h) | 56.49 mph (90.9 km/h) |
| 65 mph (104.61 km/h) | 61.19 mph (98.48 km/h) |
| 70 mph (112.65 km/h) | 65.9 mph (106.06 km/h) |
| 75 mph (120.7 km/h) | 70.61 mph (113.63 km/h) |
| 80 mph (128.75 km/h) | 75.31 mph (121.21 km/h) |
| 85 mph (136.79 km/h) | 80.02 mph (128.78 km/h) |
| 90 mph (144.84 km/h) | 84.73 mph (136.36 km/h) |
| 95 mph (152.89 km/h) | 89.44 mph (143.93 km/h) |
| 100 mph (160.93 km/h) | 94.14 mph (151.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1288 | 1496 | 1611 | 1682 | 1759 | 1814 | 1874 | 1945 | 2044 | 2142 | 2252 | 2339 | 2498 | 2674 | 2811 | 2898 | 2948 | 3128 | 3380 | 3928 |
Better Fuel Economy Factory Ratios Increased Power
