Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 305/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 27.81 (706.3) | -1.7 (-43.16) -5.8% |
| Width inches (mm) | 10.51 (267) | 12.01 (305) | 1.5 (38) 14.2% |
| Circum. inches (mm) | 92.7 (2354.5) | 87.36 (2218.91) | -5.34 (-135.59) -5.8% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 5.4 (137.25) | -1.85 (-46.98) -25.5% |
| Revolutions per mile (km) | 683.52 (424.72) | 725.29 (450.67) | 41.77 (25.95) 6.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.85 mph (30.33 km/h) |
| 25 mph (40.23 km/h) | 23.56 mph (37.92 km/h) |
| 30 mph (48.28 km/h) | 28.27 mph (45.5 km/h) |
| 35 mph (56.33 km/h) | 32.98 mph (53.08 km/h) |
| 40 mph (64.37 km/h) | 37.7 mph (60.67 km/h) |
| 45 mph (72.42 km/h) | 42.41 mph (68.25 km/h) |
| 50 mph (80.47 km/h) | 47.12 mph (75.83 km/h) |
| 55 mph (88.51 km/h) | 51.83 mph (83.42 km/h) |
| 60 mph (96.56 km/h) | 56.54 mph (91 km/h) |
| 65 mph (104.61 km/h) | 61.26 mph (98.58 km/h) |
| 70 mph (112.65 km/h) | 65.97 mph (106.17 km/h) |
| 75 mph (120.7 km/h) | 70.68 mph (113.75 km/h) |
| 80 mph (128.75 km/h) | 75.39 mph (121.33 km/h) |
| 85 mph (136.79 km/h) | 80.11 mph (128.92 km/h) |
| 90 mph (144.84 km/h) | 84.82 mph (136.5 km/h) |
| 95 mph (152.89 km/h) | 89.53 mph (144.08 km/h) |
| 100 mph (160.93 km/h) | 94.24 mph (151.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1846 | 2144 | 2309 | 2411 | 2521 | 2600 | 2686 | 2788 | 2930 | 3071 | 3228 | 3354 | 3581 | 3833 | 4029 | 4155 | 4226 | 4485 | 4846 | 5631 |
Better Fuel Economy Factory Ratios Increased Power
