Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 29/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 28.99 (736.26) | 0.11 (2.76) 0.4% |
| Width inches (mm) | 9.25 (235) | 7.52 (191) | -1.73 (-44) -18.7% |
| Circum. inches (mm) | 90.72 (2304.36) | 91.06 (2313.03) | 0.34 (8.67) 0.4% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 6.99 (177.63) | 0.05 (1.38) 0.8% |
| Revolutions per mile (km) | 698.39 (433.96) | 695.77 (432.33) | -2.62 (-1.63) -0.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.08 mph (32.31 km/h) |
| 25 mph (40.23 km/h) | 25.09 mph (40.39 km/h) |
| 30 mph (48.28 km/h) | 30.11 mph (48.46 km/h) |
| 35 mph (56.33 km/h) | 35.13 mph (56.54 km/h) |
| 40 mph (64.37 km/h) | 40.15 mph (64.62 km/h) |
| 45 mph (72.42 km/h) | 45.17 mph (72.69 km/h) |
| 50 mph (80.47 km/h) | 50.19 mph (80.77 km/h) |
| 55 mph (88.51 km/h) | 55.21 mph (88.85 km/h) |
| 60 mph (96.56 km/h) | 60.23 mph (96.92 km/h) |
| 65 mph (104.61 km/h) | 65.24 mph (105 km/h) |
| 70 mph (112.65 km/h) | 70.26 mph (113.08 km/h) |
| 75 mph (120.7 km/h) | 75.28 mph (121.16 km/h) |
| 80 mph (128.75 km/h) | 80.3 mph (129.23 km/h) |
| 85 mph (136.79 km/h) | 85.32 mph (137.31 km/h) |
| 90 mph (144.84 km/h) | 90.34 mph (145.39 km/h) |
| 95 mph (152.89 km/h) | 95.36 mph (153.46 km/h) |
| 100 mph (160.93 km/h) | 100.38 mph (161.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1771 | 2057 | 2215 | 2313 | 2419 | 2494 | 2577 | 2675 | 2810 | 2946 | 3097 | 3217 | 3436 | 3677 | 3865 | 3986 | 4054 | 4302 | 4649 | 5402 |
Better Fuel Economy Factory Ratios Increased Power
