Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-16 | 245/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.74 (653.9) | 25.68 (652.3) | -0.06 (-1.6) -0.2% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 80.88 (2054.29) | 80.68 (2049.26) | -0.2 (-5.03) -0.2% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.34 (110.25) | -0.53 (-13.5) -10.9% |
| Revolutions per mile (km) | 783.41 (486.79) | 785.33 (487.98) | 1.92 (1.19) 0.2% |
245/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.95 mph (32.11 km/h) |
| 25 mph (40.23 km/h) | 24.94 mph (40.14 km/h) |
| 30 mph (48.28 km/h) | 29.93 mph (48.16 km/h) |
| 35 mph (56.33 km/h) | 34.91 mph (56.19 km/h) |
| 40 mph (64.37 km/h) | 39.9 mph (64.22 km/h) |
| 45 mph (72.42 km/h) | 44.89 mph (72.24 km/h) |
| 50 mph (80.47 km/h) | 49.88 mph (80.27 km/h) |
| 55 mph (88.51 km/h) | 54.87 mph (88.3 km/h) |
| 60 mph (96.56 km/h) | 59.85 mph (96.32 km/h) |
| 65 mph (104.61 km/h) | 64.84 mph (104.35 km/h) |
| 70 mph (112.65 km/h) | 69.83 mph (112.38 km/h) |
| 75 mph (120.7 km/h) | 74.82 mph (120.41 km/h) |
| 80 mph (128.75 km/h) | 79.8 mph (128.43 km/h) |
| 85 mph (136.79 km/h) | 84.79 mph (136.46 km/h) |
| 90 mph (144.84 km/h) | 89.78 mph (144.49 km/h) |
| 95 mph (152.89 km/h) | 94.77 mph (152.51 km/h) |
| 100 mph (160.93 km/h) | 99.76 mph (160.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2322 | 2500 | 2611 | 2730 | 2815 | 2908 | 3019 | 3172 | 3325 | 3495 | 3631 | 3878 | 4150 | 4363 | 4499 | 4575 | 4856 | 5247 | 6098 |
Better Fuel Economy Factory Ratios Increased Power
