Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/50-13 | 225/45-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.86 (555.2) | 20.97 (532.7) | -0.89 (-22.5) -4.1% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 68.67 (1744.21) | 65.89 (1673.53) | -2.78 (-70.69) -4.1% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 3.99 (101.25) | -0.44 (-11.25) -10% |
| Revolutions per mile (km) | 922.68 (573.32) | 961.65 (597.54) | 38.97 (24.22) 4.2% |
225/45-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.19 mph (30.88 km/h) |
| 25 mph (40.23 km/h) | 23.99 mph (38.6 km/h) |
| 30 mph (48.28 km/h) | 28.78 mph (46.32 km/h) |
| 35 mph (56.33 km/h) | 33.58 mph (54.04 km/h) |
| 40 mph (64.37 km/h) | 38.38 mph (61.77 km/h) |
| 45 mph (72.42 km/h) | 43.18 mph (69.49 km/h) |
| 50 mph (80.47 km/h) | 47.97 mph (77.21 km/h) |
| 55 mph (88.51 km/h) | 52.77 mph (84.93 km/h) |
| 60 mph (96.56 km/h) | 57.57 mph (92.65 km/h) |
| 65 mph (104.61 km/h) | 62.37 mph (100.37 km/h) |
| 70 mph (112.65 km/h) | 67.16 mph (108.09 km/h) |
| 75 mph (120.7 km/h) | 71.96 mph (115.81 km/h) |
| 80 mph (128.75 km/h) | 76.76 mph (123.53 km/h) |
| 85 mph (136.79 km/h) | 81.56 mph (131.25 km/h) |
| 90 mph (144.84 km/h) | 86.35 mph (138.97 km/h) |
| 95 mph (152.89 km/h) | 91.15 mph (146.69 km/h) |
| 100 mph (160.93 km/h) | 95.95 mph (154.41 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
