Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 235/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 24.1 (612.2) | 3.13 (79.5) 14.9% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 65.89 (1673.53) | 75.72 (1923.28) | 9.83 (249.76) 14.9% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.55 (141) | 1.56 (39.75) 39.3% |
| Revolutions per mile (km) | 961.65 (597.54) | 836.77 (519.94) | -124.88 (-77.6) -13% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.98 mph (36.99 km/h) |
| 25 mph (40.23 km/h) | 28.73 mph (46.24 km/h) |
| 30 mph (48.28 km/h) | 34.48 mph (55.49 km/h) |
| 35 mph (56.33 km/h) | 40.22 mph (64.73 km/h) |
| 40 mph (64.37 km/h) | 45.97 mph (73.98 km/h) |
| 45 mph (72.42 km/h) | 51.72 mph (83.23 km/h) |
| 50 mph (80.47 km/h) | 57.46 mph (92.48 km/h) |
| 55 mph (88.51 km/h) | 63.21 mph (101.72 km/h) |
| 60 mph (96.56 km/h) | 68.95 mph (110.97 km/h) |
| 65 mph (104.61 km/h) | 74.7 mph (120.22 km/h) |
| 70 mph (112.65 km/h) | 80.45 mph (129.47 km/h) |
| 75 mph (120.7 km/h) | 86.19 mph (138.71 km/h) |
| 80 mph (128.75 km/h) | 91.94 mph (147.96 km/h) |
| 85 mph (136.79 km/h) | 97.69 mph (157.21 km/h) |
| 90 mph (144.84 km/h) | 103.43 mph (166.46 km/h) |
| 95 mph (152.89 km/h) | 109.18 mph (175.7 km/h) |
| 100 mph (160.93 km/h) | 114.92 mph (184.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2129 | 2474 | 2664 | 2782 | 2909 | 2999 | 3099 | 3217 | 3380 | 3543 | 3724 | 3869 | 4132 | 4422 | 4648 | 4793 | 4875 | 5174 | 5591 | 6497 |
Better Fuel Economy Factory Ratios Increased Power
