Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 315/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 27.4 (696) | -2.1 (-53.46) -7.1% |
| Width inches (mm) | 10.51 (267) | 12.4 (315) | 1.89 (48) 18% |
| Circum. inches (mm) | 92.7 (2354.5) | 86.08 (2186.55) | -6.61 (-167.95) -7.1% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 6.2 (157.5) | -1.05 (-26.73) -14.5% |
| Revolutions per mile (km) | 683.52 (424.72) | 736.02 (457.34) | 52.5 (32.62) 7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.57 mph (29.89 km/h) |
| 25 mph (40.23 km/h) | 23.22 mph (37.36 km/h) |
| 30 mph (48.28 km/h) | 27.86 mph (44.84 km/h) |
| 35 mph (56.33 km/h) | 32.5 mph (52.31 km/h) |
| 40 mph (64.37 km/h) | 37.15 mph (59.78 km/h) |
| 45 mph (72.42 km/h) | 41.79 mph (67.25 km/h) |
| 50 mph (80.47 km/h) | 46.43 mph (74.73 km/h) |
| 55 mph (88.51 km/h) | 51.08 mph (82.2 km/h) |
| 60 mph (96.56 km/h) | 55.72 mph (89.67 km/h) |
| 65 mph (104.61 km/h) | 60.36 mph (97.15 km/h) |
| 70 mph (112.65 km/h) | 65.01 mph (104.62 km/h) |
| 75 mph (120.7 km/h) | 69.65 mph (112.09 km/h) |
| 80 mph (128.75 km/h) | 74.29 mph (119.56 km/h) |
| 85 mph (136.79 km/h) | 78.94 mph (127.04 km/h) |
| 90 mph (144.84 km/h) | 83.58 mph (134.51 km/h) |
| 95 mph (152.89 km/h) | 88.22 mph (141.98 km/h) |
| 100 mph (160.93 km/h) | 92.87 mph (149.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1873 | 2176 | 2343 | 2447 | 2558 | 2638 | 2726 | 2829 | 2973 | 3116 | 3276 | 3403 | 3634 | 3890 | 4089 | 4216 | 4288 | 4551 | 4918 | 5715 |
Better Fuel Economy Factory Ratios Increased Power
