Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-10 | 215/50-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.09 (434) | 20.46 (519.8) | 3.38 (85.8) 19.8% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 53.68 (1363.45) | 64.29 (1633) | 10.61 (269.55) 19.8% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.23 (107.5) | 0.69 (17.5) 19.4% |
| Revolutions per mile (km) | 1180.35 (733.43) | 985.51 (612.37) | -194.83 (-121.06) -16.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.95 mph (38.55 km/h) |
| 25 mph (40.23 km/h) | 29.94 mph (48.19 km/h) |
| 30 mph (48.28 km/h) | 35.93 mph (57.83 km/h) |
| 35 mph (56.33 km/h) | 41.92 mph (67.46 km/h) |
| 40 mph (64.37 km/h) | 47.91 mph (77.1 km/h) |
| 45 mph (72.42 km/h) | 53.9 mph (86.74 km/h) |
| 50 mph (80.47 km/h) | 59.88 mph (96.38 km/h) |
| 55 mph (88.51 km/h) | 65.87 mph (106.01 km/h) |
| 60 mph (96.56 km/h) | 71.86 mph (115.65 km/h) |
| 65 mph (104.61 km/h) | 77.85 mph (125.29 km/h) |
| 70 mph (112.65 km/h) | 83.84 mph (134.93 km/h) |
| 75 mph (120.7 km/h) | 89.83 mph (144.56 km/h) |
| 80 mph (128.75 km/h) | 95.82 mph (154.2 km/h) |
| 85 mph (136.79 km/h) | 101.8 mph (163.84 km/h) |
| 90 mph (144.84 km/h) | 107.79 mph (173.48 km/h) |
| 95 mph (152.89 km/h) | 113.78 mph (183.11 km/h) |
| 100 mph (160.93 km/h) | 119.77 mph (192.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
