Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 325/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 27.8 (706) | -1.71 (-43.46) -5.8% |
| Width inches (mm) | 10.51 (267) | 12.8 (325) | 2.28 (58) 21.7% |
| Circum. inches (mm) | 92.7 (2354.5) | 87.32 (2217.96) | -5.38 (-136.53) -5.8% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 6.4 (162.5) | -0.86 (-21.73) -11.8% |
| Revolutions per mile (km) | 683.52 (424.72) | 725.6 (450.86) | 42.08 (26.14) 6.2% |
325/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.84 mph (30.32 km/h) |
| 25 mph (40.23 km/h) | 23.55 mph (37.9 km/h) |
| 30 mph (48.28 km/h) | 28.26 mph (45.48 km/h) |
| 35 mph (56.33 km/h) | 32.97 mph (53.06 km/h) |
| 40 mph (64.37 km/h) | 37.68 mph (60.64 km/h) |
| 45 mph (72.42 km/h) | 42.39 mph (68.22 km/h) |
| 50 mph (80.47 km/h) | 47.1 mph (75.8 km/h) |
| 55 mph (88.51 km/h) | 51.81 mph (83.38 km/h) |
| 60 mph (96.56 km/h) | 56.52 mph (90.96 km/h) |
| 65 mph (104.61 km/h) | 61.23 mph (98.54 km/h) |
| 70 mph (112.65 km/h) | 65.94 mph (106.12 km/h) |
| 75 mph (120.7 km/h) | 70.65 mph (113.7 km/h) |
| 80 mph (128.75 km/h) | 75.36 mph (121.28 km/h) |
| 85 mph (136.79 km/h) | 80.07 mph (128.86 km/h) |
| 90 mph (144.84 km/h) | 84.78 mph (136.44 km/h) |
| 95 mph (152.89 km/h) | 89.49 mph (144.02 km/h) |
| 100 mph (160.93 km/h) | 94.2 mph (151.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1847 | 2145 | 2310 | 2412 | 2522 | 2601 | 2687 | 2789 | 2931 | 3072 | 3229 | 3355 | 3583 | 3834 | 4031 | 4157 | 4227 | 4487 | 4848 | 5634 |
Better Fuel Economy Factory Ratios Increased Power
