Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/70-15 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.75 (654) | 24.97 (634.3) | -0.78 (-19.7) -3% |
| Width inches (mm) | 7.68 (195) | 8.86 (225) | 1.18 (30) 15.4% |
| Circum. inches (mm) | 80.89 (2054.6) | 78.45 (1992.71) | -2.44 (-61.89) -3% |
| Sidewall Height inches (mm) | 5.37 (136.5) | 3.99 (101.25) | -1.39 (-35.25) -25.8% |
| Revolutions per mile (km) | 783.29 (486.71) | 807.61 (501.83) | 24.33 (15.12) 3.1% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.22 km/h) |
| 25 mph (40.23 km/h) | 24.25 mph (39.02 km/h) |
| 30 mph (48.28 km/h) | 29.1 mph (46.83 km/h) |
| 35 mph (56.33 km/h) | 33.95 mph (54.63 km/h) |
| 40 mph (64.37 km/h) | 38.8 mph (62.43 km/h) |
| 45 mph (72.42 km/h) | 43.64 mph (70.24 km/h) |
| 50 mph (80.47 km/h) | 48.49 mph (78.04 km/h) |
| 55 mph (88.51 km/h) | 53.34 mph (85.85 km/h) |
| 60 mph (96.56 km/h) | 58.19 mph (93.65 km/h) |
| 65 mph (104.61 km/h) | 63.04 mph (101.46 km/h) |
| 70 mph (112.65 km/h) | 67.89 mph (109.26 km/h) |
| 75 mph (120.7 km/h) | 72.74 mph (117.07 km/h) |
| 80 mph (128.75 km/h) | 77.59 mph (124.87 km/h) |
| 85 mph (136.79 km/h) | 82.44 mph (132.67 km/h) |
| 90 mph (144.84 km/h) | 87.29 mph (140.48 km/h) |
| 95 mph (152.89 km/h) | 92.14 mph (148.28 km/h) |
| 100 mph (160.93 km/h) | 96.99 mph (156.09 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
