Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/50-16 | 245/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.86 (631.4) | 25.68 (652.3) | 0.82 (20.9) 3.3% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 78.09 (1983.6) | 80.68 (2049.26) | 2.59 (65.66) 3.3% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 4.34 (110.25) | -0.09 (-2.25) -2% |
| Revolutions per mile (km) | 811.32 (504.13) | 785.33 (487.98) | -26 (-16.15) -3.2% |
245/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.83 mph (41.57 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.88 km/h) |
| 35 mph (56.33 km/h) | 36.16 mph (58.19 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.5 km/h) |
| 45 mph (72.42 km/h) | 46.49 mph (74.82 km/h) |
| 50 mph (80.47 km/h) | 51.66 mph (83.13 km/h) |
| 55 mph (88.51 km/h) | 56.82 mph (91.44 km/h) |
| 60 mph (96.56 km/h) | 61.99 mph (99.76 km/h) |
| 65 mph (104.61 km/h) | 67.15 mph (108.07 km/h) |
| 70 mph (112.65 km/h) | 72.32 mph (116.38 km/h) |
| 75 mph (120.7 km/h) | 77.48 mph (124.7 km/h) |
| 80 mph (128.75 km/h) | 82.65 mph (133.01 km/h) |
| 85 mph (136.79 km/h) | 87.81 mph (141.32 km/h) |
| 90 mph (144.84 km/h) | 92.98 mph (149.64 km/h) |
| 95 mph (152.89 km/h) | 98.14 mph (157.95 km/h) |
| 100 mph (160.93 km/h) | 103.31 mph (166.26 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
