Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 35/12.5-15 | 31/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.03 (889.8) | 30.98 (786.84) | -4.05 (-102.96) -11.6% |
| Width inches (mm) | 12.52 (318) | 10.51 (267) | -2.01 (-51) -16% |
| Circum. inches (mm) | 110.05 (2795.39) | 97.32 (2471.93) | -12.73 (-323.46) -11.6% |
| Sidewall Height inches (mm) | 10.02 (254.4) | 7.99 (202.92) | -2.03 (-51.48) -20.2% |
| Revolutions per mile (km) | 575.71 (357.73) | 651.05 (404.54) | 75.33 (46.81) 13.1% |
31/10.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.69 mph (28.46 km/h) |
| 25 mph (40.23 km/h) | 22.11 mph (35.58 km/h) |
| 30 mph (48.28 km/h) | 26.53 mph (42.69 km/h) |
| 35 mph (56.33 km/h) | 30.95 mph (49.81 km/h) |
| 40 mph (64.37 km/h) | 35.37 mph (56.93 km/h) |
| 45 mph (72.42 km/h) | 39.79 mph (64.04 km/h) |
| 50 mph (80.47 km/h) | 44.21 mph (71.16 km/h) |
| 55 mph (88.51 km/h) | 48.64 mph (78.27 km/h) |
| 60 mph (96.56 km/h) | 53.06 mph (85.39 km/h) |
| 65 mph (104.61 km/h) | 57.48 mph (92.5 km/h) |
| 70 mph (112.65 km/h) | 61.9 mph (99.62 km/h) |
| 75 mph (120.7 km/h) | 66.32 mph (106.73 km/h) |
| 80 mph (128.75 km/h) | 70.74 mph (113.85 km/h) |
| 85 mph (136.79 km/h) | 75.16 mph (120.97 km/h) |
| 90 mph (144.84 km/h) | 79.59 mph (128.08 km/h) |
| 95 mph (152.89 km/h) | 84.01 mph (135.2 km/h) |
| 100 mph (160.93 km/h) | 88.43 mph (142.31 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
