Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 250/70-17 | 245/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.78 (781.8) | 30.5 (774.8) | -0.28 (-7) -0.9% |
| Width inches (mm) | 9.84 (250) | 9.65 (245) | -0.2 (-5) -2% |
| Circum. inches (mm) | 96.7 (2456.1) | 95.83 (2434.11) | -0.87 (-21.99) -0.9% |
| Sidewall Height inches (mm) | 6.89 (175) | 6.75 (171.5) | -0.14 (-3.5) -2% |
| Revolutions per mile (km) | 655.24 (407.15) | 661.16 (410.83) | 5.92 (3.68) 0.9% |
245/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.82 mph (31.9 km/h) |
| 25 mph (40.23 km/h) | 24.78 mph (39.87 km/h) |
| 30 mph (48.28 km/h) | 29.73 mph (47.85 km/h) |
| 35 mph (56.33 km/h) | 34.69 mph (55.82 km/h) |
| 40 mph (64.37 km/h) | 39.64 mph (63.8 km/h) |
| 45 mph (72.42 km/h) | 44.6 mph (71.77 km/h) |
| 50 mph (80.47 km/h) | 49.55 mph (79.75 km/h) |
| 55 mph (88.51 km/h) | 54.51 mph (87.72 km/h) |
| 60 mph (96.56 km/h) | 59.46 mph (95.7 km/h) |
| 65 mph (104.61 km/h) | 64.42 mph (103.67 km/h) |
| 70 mph (112.65 km/h) | 69.37 mph (111.65 km/h) |
| 75 mph (120.7 km/h) | 74.33 mph (119.62 km/h) |
| 80 mph (128.75 km/h) | 79.28 mph (127.59 km/h) |
| 85 mph (136.79 km/h) | 84.24 mph (135.57 km/h) |
| 90 mph (144.84 km/h) | 89.19 mph (143.54 km/h) |
| 95 mph (152.89 km/h) | 94.15 mph (151.52 km/h) |
| 100 mph (160.93 km/h) | 99.1 mph (159.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1683 | 1955 | 2105 | 2198 | 2298 | 2370 | 2449 | 2542 | 2671 | 2799 | 2943 | 3057 | 3265 | 3494 | 3673 | 3787 | 3852 | 4088 | 4418 | 5134 |
Better Fuel Economy Factory Ratios Increased Power
