Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 245/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 27.68 (703.1) | 3.11 (79.1) 12.7% |
| Width inches (mm) | 5.31 (135) | 9.65 (245) | 4.33 (110) 81.5% |
| Circum. inches (mm) | 77.18 (1960.35) | 86.96 (2208.85) | 9.78 (248.5) 12.7% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 4.34 (110.25) | -0.44 (-11.25) -9.3% |
| Revolutions per mile (km) | 820.95 (510.11) | 728.59 (452.72) | -92.36 (-57.39) -11.3% |
245/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.54 mph (36.27 km/h) |
| 25 mph (40.23 km/h) | 28.17 mph (45.33 km/h) |
| 30 mph (48.28 km/h) | 33.8 mph (54.4 km/h) |
| 35 mph (56.33 km/h) | 39.44 mph (63.47 km/h) |
| 40 mph (64.37 km/h) | 45.07 mph (72.53 km/h) |
| 45 mph (72.42 km/h) | 50.7 mph (81.6 km/h) |
| 50 mph (80.47 km/h) | 56.34 mph (90.67 km/h) |
| 55 mph (88.51 km/h) | 61.97 mph (99.73 km/h) |
| 60 mph (96.56 km/h) | 67.61 mph (108.8 km/h) |
| 65 mph (104.61 km/h) | 73.24 mph (117.87 km/h) |
| 70 mph (112.65 km/h) | 78.87 mph (126.93 km/h) |
| 75 mph (120.7 km/h) | 84.51 mph (136 km/h) |
| 80 mph (128.75 km/h) | 90.14 mph (145.07 km/h) |
| 85 mph (136.79 km/h) | 95.77 mph (154.13 km/h) |
| 90 mph (144.84 km/h) | 101.41 mph (163.2 km/h) |
| 95 mph (152.89 km/h) | 107.04 mph (172.27 km/h) |
| 100 mph (160.93 km/h) | 112.68 mph (181.34 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
