Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-17 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.04 (661.3) | 24.97 (634.3) | -1.06 (-27) -4.1% |
| Width inches (mm) | 10.04 (255) | 8.86 (225) | -1.18 (-30) -11.8% |
| Circum. inches (mm) | 81.79 (2077.54) | 78.45 (1992.71) | -3.34 (-84.82) -4.1% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 3.99 (101.25) | -0.53 (-13.5) -11.8% |
| Revolutions per mile (km) | 774.64 (481.34) | 807.61 (501.83) | 32.97 (20.49) 4.3% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.18 mph (30.87 km/h) |
| 25 mph (40.23 km/h) | 23.98 mph (38.59 km/h) |
| 30 mph (48.28 km/h) | 28.78 mph (46.31 km/h) |
| 35 mph (56.33 km/h) | 33.57 mph (54.03 km/h) |
| 40 mph (64.37 km/h) | 38.37 mph (61.75 km/h) |
| 45 mph (72.42 km/h) | 43.16 mph (69.46 km/h) |
| 50 mph (80.47 km/h) | 47.96 mph (77.18 km/h) |
| 55 mph (88.51 km/h) | 52.75 mph (84.9 km/h) |
| 60 mph (96.56 km/h) | 57.55 mph (92.62 km/h) |
| 65 mph (104.61 km/h) | 62.35 mph (100.34 km/h) |
| 70 mph (112.65 km/h) | 67.14 mph (108.05 km/h) |
| 75 mph (120.7 km/h) | 71.94 mph (115.77 km/h) |
| 80 mph (128.75 km/h) | 76.73 mph (123.49 km/h) |
| 85 mph (136.79 km/h) | 81.53 mph (131.21 km/h) |
| 90 mph (144.84 km/h) | 86.33 mph (138.93 km/h) |
| 95 mph (152.89 km/h) | 91.12 mph (146.65 km/h) |
| 100 mph (160.93 km/h) | 95.92 mph (154.36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2055 | 2388 | 2571 | 2685 | 2807 | 2895 | 2991 | 3105 | 3262 | 3420 | 3594 | 3734 | 3988 | 4268 | 4487 | 4626 | 4705 | 4994 | 5396 | 6271 |
Better Fuel Economy Factory Ratios Increased Power
