Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-17 | 245/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 27.68 (703.1) | 0.94 (23.8) 3.5% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 84.02 (2134.08) | 86.96 (2208.85) | 2.94 (74.77) 3.5% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.34 (110.25) | -0.53 (-13.5) -10.9% |
| Revolutions per mile (km) | 754.11 (468.58) | 728.59 (452.72) | -25.53 (-15.86) -3.4% |
245/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.7 mph (33.31 km/h) |
| 25 mph (40.23 km/h) | 25.88 mph (41.64 km/h) |
| 30 mph (48.28 km/h) | 31.05 mph (49.97 km/h) |
| 35 mph (56.33 km/h) | 36.23 mph (58.3 km/h) |
| 40 mph (64.37 km/h) | 41.4 mph (66.63 km/h) |
| 45 mph (72.42 km/h) | 46.58 mph (74.96 km/h) |
| 50 mph (80.47 km/h) | 51.75 mph (83.29 km/h) |
| 55 mph (88.51 km/h) | 56.93 mph (91.62 km/h) |
| 60 mph (96.56 km/h) | 62.1 mph (99.94 km/h) |
| 65 mph (104.61 km/h) | 67.28 mph (108.27 km/h) |
| 70 mph (112.65 km/h) | 72.45 mph (116.6 km/h) |
| 75 mph (120.7 km/h) | 77.63 mph (124.93 km/h) |
| 80 mph (128.75 km/h) | 82.8 mph (133.26 km/h) |
| 85 mph (136.79 km/h) | 87.98 mph (141.59 km/h) |
| 90 mph (144.84 km/h) | 93.15 mph (149.92 km/h) |
| 95 mph (152.89 km/h) | 98.33 mph (158.24 km/h) |
| 100 mph (160.93 km/h) | 103.5 mph (166.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1854 | 2154 | 2320 | 2422 | 2533 | 2612 | 2698 | 2801 | 2943 | 3085 | 3243 | 3369 | 3598 | 3850 | 4047 | 4174 | 4245 | 4505 | 4868 | 5657 |
Better Fuel Economy Factory Ratios Increased Power
