Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 245/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 30.5 (774.8) | 0.93 (23.6) 3.1% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 92.91 (2359.96) | 95.83 (2434.11) | 2.92 (74.14) 3.1% |
| Sidewall Height inches (mm) | 5.79 (147) | 6.75 (171.5) | 0.96 (24.5) 16.7% |
| Revolutions per mile (km) | 681.94 (423.73) | 661.16 (410.83) | -20.77 (-12.91) -3% |
245/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.79 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.94 mph (49.8 km/h) |
| 35 mph (56.33 km/h) | 36.1 mph (58.1 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.4 km/h) |
| 45 mph (72.42 km/h) | 46.41 mph (74.7 km/h) |
| 50 mph (80.47 km/h) | 51.57 mph (83 km/h) |
| 55 mph (88.51 km/h) | 56.73 mph (91.29 km/h) |
| 60 mph (96.56 km/h) | 61.88 mph (99.59 km/h) |
| 65 mph (104.61 km/h) | 67.04 mph (107.89 km/h) |
| 70 mph (112.65 km/h) | 72.2 mph (116.19 km/h) |
| 75 mph (120.7 km/h) | 77.36 mph (124.49 km/h) |
| 80 mph (128.75 km/h) | 82.51 mph (132.79 km/h) |
| 85 mph (136.79 km/h) | 87.67 mph (141.09 km/h) |
| 90 mph (144.84 km/h) | 92.83 mph (149.39 km/h) |
| 95 mph (152.89 km/h) | 97.98 mph (157.69 km/h) |
| 100 mph (160.93 km/h) | 103.14 mph (165.99 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
