Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/50-17 | 245/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.86 (656.8) | 26.72 (678.6) | 0.86 (21.8) 3.3% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 81.24 (2063.4) | 83.93 (2131.88) | 2.7 (68.49) 3.3% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 3.86 (98) | -0.57 (-14.5) -12.9% |
| Revolutions per mile (km) | 779.95 (484.64) | 754.89 (469.07) | -25.06 (-15.57) -3.2% |
245/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.26 km/h) |
| 25 mph (40.23 km/h) | 25.83 mph (41.57 km/h) |
| 30 mph (48.28 km/h) | 31 mph (49.88 km/h) |
| 35 mph (56.33 km/h) | 36.16 mph (58.2 km/h) |
| 40 mph (64.37 km/h) | 41.33 mph (66.51 km/h) |
| 45 mph (72.42 km/h) | 46.49 mph (74.82 km/h) |
| 50 mph (80.47 km/h) | 51.66 mph (83.14 km/h) |
| 55 mph (88.51 km/h) | 56.83 mph (91.45 km/h) |
| 60 mph (96.56 km/h) | 61.99 mph (99.77 km/h) |
| 65 mph (104.61 km/h) | 67.16 mph (108.08 km/h) |
| 70 mph (112.65 km/h) | 72.32 mph (116.39 km/h) |
| 75 mph (120.7 km/h) | 77.49 mph (124.71 km/h) |
| 80 mph (128.75 km/h) | 82.66 mph (133.02 km/h) |
| 85 mph (136.79 km/h) | 87.82 mph (141.33 km/h) |
| 90 mph (144.84 km/h) | 92.99 mph (149.65 km/h) |
| 95 mph (152.89 km/h) | 98.15 mph (157.96 km/h) |
| 100 mph (160.93 km/h) | 103.32 mph (166.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1921 | 2232 | 2403 | 2510 | 2624 | 2706 | 2796 | 2902 | 3049 | 3196 | 3360 | 3491 | 3728 | 3989 | 4194 | 4324 | 4398 | 4668 | 5044 | 5861 |
Better Fuel Economy Factory Ratios Increased Power
