Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 425/65-22.5 | 31/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 44.25 (1124) | 30.98 (786.84) | -13.27 (-337.16) -30% |
| Width inches (mm) | 16.73 (425) | 10.51 (267) | -6.22 (-158) -37.2% |
| Circum. inches (mm) | 139.02 (3531.15) | 97.32 (2471.93) | -41.7 (-1059.22) -30% |
| Sidewall Height inches (mm) | 10.88 (276.25) | 7.99 (202.92) | -2.89 (-73.33) -26.5% |
| Revolutions per mile (km) | 455.76 (283.19) | 651.05 (404.54) | 195.29 (121.35) 42.8% |
31/10.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 14 mph (22.53 km/h) |
| 25 mph (40.23 km/h) | 17.5 mph (28.17 km/h) |
| 30 mph (48.28 km/h) | 21 mph (33.8 km/h) |
| 35 mph (56.33 km/h) | 24.5 mph (39.43 km/h) |
| 40 mph (64.37 km/h) | 28 mph (45.06 km/h) |
| 45 mph (72.42 km/h) | 31.5 mph (50.7 km/h) |
| 50 mph (80.47 km/h) | 35 mph (56.33 km/h) |
| 55 mph (88.51 km/h) | 38.5 mph (61.96 km/h) |
| 60 mph (96.56 km/h) | 42 mph (67.6 km/h) |
| 65 mph (104.61 km/h) | 45.5 mph (73.23 km/h) |
| 70 mph (112.65 km/h) | 49 mph (78.86 km/h) |
| 75 mph (120.7 km/h) | 52.5 mph (84.5 km/h) |
| 80 mph (128.75 km/h) | 56 mph (90.13 km/h) |
| 85 mph (136.79 km/h) | 59.5 mph (95.76 km/h) |
| 90 mph (144.84 km/h) | 63 mph (101.39 km/h) |
| 95 mph (152.89 km/h) | 66.5 mph (107.03 km/h) |
| 100 mph (160.93 km/h) | 70 mph (112.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1657 | 1925 | 2073 | 2164 | 2263 | 2334 | 2411 | 2503 | 2630 | 2757 | 2898 | 3010 | 3215 | 3440 | 3617 | 3730 | 3793 | 4026 | 4350 | 5055 |
Better Fuel Economy Factory Ratios Increased Power
