Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-19 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.76 (730.6) | 24.97 (634.3) | -3.79 (-96.3) -13.2% |
| Width inches (mm) | 6.1 (155) | 8.86 (225) | 2.76 (70) 45.2% |
| Circum. inches (mm) | 90.36 (2295.25) | 78.45 (1992.71) | -11.91 (-302.54) -13.2% |
| Sidewall Height inches (mm) | 4.88 (124) | 3.99 (101.25) | -0.9 (-22.75) -18.3% |
| Revolutions per mile (km) | 701.16 (435.68) | 807.61 (501.83) | 106.45 (66.15) 15.2% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.36 mph (27.94 km/h) |
| 25 mph (40.23 km/h) | 21.7 mph (34.93 km/h) |
| 30 mph (48.28 km/h) | 26.05 mph (41.92 km/h) |
| 35 mph (56.33 km/h) | 30.39 mph (48.9 km/h) |
| 40 mph (64.37 km/h) | 34.73 mph (55.89 km/h) |
| 45 mph (72.42 km/h) | 39.07 mph (62.87 km/h) |
| 50 mph (80.47 km/h) | 43.41 mph (69.86 km/h) |
| 55 mph (88.51 km/h) | 47.75 mph (76.85 km/h) |
| 60 mph (96.56 km/h) | 52.09 mph (83.83 km/h) |
| 65 mph (104.61 km/h) | 56.43 mph (90.82 km/h) |
| 70 mph (112.65 km/h) | 60.77 mph (97.81 km/h) |
| 75 mph (120.7 km/h) | 65.11 mph (104.79 km/h) |
| 80 mph (128.75 km/h) | 69.46 mph (111.78 km/h) |
| 85 mph (136.79 km/h) | 73.8 mph (118.76 km/h) |
| 90 mph (144.84 km/h) | 78.14 mph (125.75 km/h) |
| 95 mph (152.89 km/h) | 82.48 mph (132.74 km/h) |
| 100 mph (160.93 km/h) | 86.82 mph (139.72 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
