Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 315/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 28.64 (727.5) | -0.86 (-21.96) -2.9% |
| Width inches (mm) | 10.51 (267) | 12.4 (315) | 1.89 (48) 18% |
| Circum. inches (mm) | 92.7 (2354.5) | 89.98 (2285.51) | -2.72 (-68.99) -2.9% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 6.82 (173.25) | -0.43 (-10.98) -6% |
| Revolutions per mile (km) | 683.52 (424.72) | 704.15 (437.54) | 20.63 (12.82) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.24 km/h) |
| 25 mph (40.23 km/h) | 24.27 mph (39.05 km/h) |
| 30 mph (48.28 km/h) | 29.12 mph (46.87 km/h) |
| 35 mph (56.33 km/h) | 33.97 mph (54.68 km/h) |
| 40 mph (64.37 km/h) | 38.83 mph (62.49 km/h) |
| 45 mph (72.42 km/h) | 43.68 mph (70.3 km/h) |
| 50 mph (80.47 km/h) | 48.53 mph (78.11 km/h) |
| 55 mph (88.51 km/h) | 53.39 mph (85.92 km/h) |
| 60 mph (96.56 km/h) | 58.24 mph (93.73 km/h) |
| 65 mph (104.61 km/h) | 63.1 mph (101.54 km/h) |
| 70 mph (112.65 km/h) | 67.95 mph (109.35 km/h) |
| 75 mph (120.7 km/h) | 72.8 mph (117.16 km/h) |
| 80 mph (128.75 km/h) | 77.66 mph (124.98 km/h) |
| 85 mph (136.79 km/h) | 82.51 mph (132.79 km/h) |
| 90 mph (144.84 km/h) | 87.36 mph (140.6 km/h) |
| 95 mph (152.89 km/h) | 92.22 mph (148.41 km/h) |
| 100 mph (160.93 km/h) | 97.07 mph (156.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1792 | 2082 | 2242 | 2341 | 2448 | 2524 | 2608 | 2707 | 2844 | 2981 | 3134 | 3256 | 3477 | 3721 | 3912 | 4034 | 4102 | 4354 | 4705 | 5467 |
Better Fuel Economy Factory Ratios Increased Power
