Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/50-12 | 225/35-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.46 (519.8) | 18.2 (462.3) | -2.26 (-57.5) -11.1% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 64.29 (1633) | 57.18 (1452.36) | -7.11 (-180.64) -11.1% |
| Sidewall Height inches (mm) | 4.23 (107.5) | 3.1 (78.75) | -1.13 (-28.75) -26.7% |
| Revolutions per mile (km) | 985.51 (612.37) | 1108.09 (688.53) | 122.58 (76.17) 12.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.79 mph (28.63 km/h) |
| 25 mph (40.23 km/h) | 22.23 mph (35.78 km/h) |
| 30 mph (48.28 km/h) | 26.68 mph (42.94 km/h) |
| 35 mph (56.33 km/h) | 31.13 mph (50.1 km/h) |
| 40 mph (64.37 km/h) | 35.58 mph (57.25 km/h) |
| 45 mph (72.42 km/h) | 40.02 mph (64.41 km/h) |
| 50 mph (80.47 km/h) | 44.47 mph (71.57 km/h) |
| 55 mph (88.51 km/h) | 48.92 mph (78.72 km/h) |
| 60 mph (96.56 km/h) | 53.36 mph (85.88 km/h) |
| 65 mph (104.61 km/h) | 57.81 mph (93.04 km/h) |
| 70 mph (112.65 km/h) | 62.26 mph (100.19 km/h) |
| 75 mph (120.7 km/h) | 66.7 mph (107.35 km/h) |
| 80 mph (128.75 km/h) | 71.15 mph (114.51 km/h) |
| 85 mph (136.79 km/h) | 75.6 mph (121.66 km/h) |
| 90 mph (144.84 km/h) | 80.04 mph (128.82 km/h) |
| 95 mph (152.89 km/h) | 84.49 mph (135.98 km/h) |
| 100 mph (160.93 km/h) | 88.94 mph (143.13 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
