Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 305/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 31.81 (808) | 2.3 (58.54) 7.8% |
| Width inches (mm) | 10.51 (267) | 12.01 (305) | 1.5 (38) 14.2% |
| Circum. inches (mm) | 92.7 (2354.5) | 99.94 (2538.41) | 7.24 (183.91) 7.8% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 8.41 (213.5) | 1.15 (29.27) 15.9% |
| Revolutions per mile (km) | 683.52 (424.72) | 634 (393.95) | -49.52 (-30.77) -7.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.56 mph (34.7 km/h) |
| 25 mph (40.23 km/h) | 26.95 mph (43.38 km/h) |
| 30 mph (48.28 km/h) | 32.34 mph (52.05 km/h) |
| 35 mph (56.33 km/h) | 37.73 mph (60.73 km/h) |
| 40 mph (64.37 km/h) | 43.12 mph (69.4 km/h) |
| 45 mph (72.42 km/h) | 48.51 mph (78.08 km/h) |
| 50 mph (80.47 km/h) | 53.91 mph (86.75 km/h) |
| 55 mph (88.51 km/h) | 59.3 mph (95.43 km/h) |
| 60 mph (96.56 km/h) | 64.69 mph (104.1 km/h) |
| 65 mph (104.61 km/h) | 70.08 mph (112.78 km/h) |
| 70 mph (112.65 km/h) | 75.47 mph (121.45 km/h) |
| 75 mph (120.7 km/h) | 80.86 mph (130.13 km/h) |
| 80 mph (128.75 km/h) | 86.25 mph (138.8 km/h) |
| 85 mph (136.79 km/h) | 91.64 mph (147.48 km/h) |
| 90 mph (144.84 km/h) | 97.03 mph (156.15 km/h) |
| 95 mph (152.89 km/h) | 102.42 mph (164.83 km/h) |
| 100 mph (160.93 km/h) | 107.81 mph (173.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1613 | 1874 | 2018 | 2108 | 2204 | 2272 | 2348 | 2437 | 2561 | 2684 | 2822 | 2932 | 3131 | 3350 | 3522 | 3632 | 3694 | 3920 | 4236 | 4923 |
Better Fuel Economy Factory Ratios Increased Power
