Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 275/45-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 22.74 (577.7) | 1.77 (45) 8.4% |
| Width inches (mm) | 8.86 (225) | 10.83 (275) | 1.97 (50) 22.2% |
| Circum. inches (mm) | 65.89 (1673.53) | 71.45 (1814.9) | 5.57 (141.37) 8.4% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.87 (123.75) | 0.89 (22.5) 22.2% |
| Revolutions per mile (km) | 961.65 (597.54) | 886.74 (550.99) | -74.91 (-46.55) -7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.69 mph (34.91 km/h) |
| 25 mph (40.23 km/h) | 27.11 mph (43.63 km/h) |
| 30 mph (48.28 km/h) | 32.53 mph (52.36 km/h) |
| 35 mph (56.33 km/h) | 37.96 mph (61.09 km/h) |
| 40 mph (64.37 km/h) | 43.38 mph (69.81 km/h) |
| 45 mph (72.42 km/h) | 48.8 mph (78.54 km/h) |
| 50 mph (80.47 km/h) | 54.22 mph (87.26 km/h) |
| 55 mph (88.51 km/h) | 59.65 mph (95.99 km/h) |
| 60 mph (96.56 km/h) | 65.07 mph (104.72 km/h) |
| 65 mph (104.61 km/h) | 70.49 mph (113.44 km/h) |
| 70 mph (112.65 km/h) | 75.91 mph (122.17 km/h) |
| 75 mph (120.7 km/h) | 81.34 mph (130.9 km/h) |
| 80 mph (128.75 km/h) | 86.76 mph (139.62 km/h) |
| 85 mph (136.79 km/h) | 92.18 mph (148.35 km/h) |
| 90 mph (144.84 km/h) | 97.6 mph (157.08 km/h) |
| 95 mph (152.89 km/h) | 103.03 mph (165.8 km/h) |
| 100 mph (160.93 km/h) | 108.45 mph (174.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2257 | 2621 | 2823 | 2948 | 3082 | 3178 | 3284 | 3409 | 3582 | 3755 | 3947 | 4100 | 4379 | 4686 | 4926 | 5080 | 5166 | 5483 | 5925 | 6885 |
Better Fuel Economy Factory Ratios Increased Power
