Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/10.5-17 | 245/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.93 (810.94) | 30.5 (774.8) | -1.42 (-36.14) -4.5% |
| Width inches (mm) | 10.51 (267) | 9.65 (245) | -0.87 (-22) -8.2% |
| Circum. inches (mm) | 100.3 (2547.64) | 95.83 (2434.11) | -4.47 (-113.54) -4.5% |
| Sidewall Height inches (mm) | 7.46 (189.57) | 6.75 (171.5) | -0.71 (-18.07) -9.5% |
| Revolutions per mile (km) | 631.7 (392.52) | 661.16 (410.83) | 29.47 (18.31) 4.7% |
245/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.11 mph (30.75 km/h) |
| 25 mph (40.23 km/h) | 23.89 mph (38.44 km/h) |
| 30 mph (48.28 km/h) | 28.66 mph (46.13 km/h) |
| 35 mph (56.33 km/h) | 33.44 mph (53.82 km/h) |
| 40 mph (64.37 km/h) | 38.22 mph (61.51 km/h) |
| 45 mph (72.42 km/h) | 42.99 mph (69.19 km/h) |
| 50 mph (80.47 km/h) | 47.77 mph (76.88 km/h) |
| 55 mph (88.51 km/h) | 52.55 mph (84.57 km/h) |
| 60 mph (96.56 km/h) | 57.33 mph (92.26 km/h) |
| 65 mph (104.61 km/h) | 62.1 mph (99.95 km/h) |
| 70 mph (112.65 km/h) | 66.88 mph (107.63 km/h) |
| 75 mph (120.7 km/h) | 71.66 mph (115.32 km/h) |
| 80 mph (128.75 km/h) | 76.43 mph (123.01 km/h) |
| 85 mph (136.79 km/h) | 81.21 mph (130.7 km/h) |
| 90 mph (144.84 km/h) | 85.99 mph (138.39 km/h) |
| 95 mph (152.89 km/h) | 90.77 mph (146.07 km/h) |
| 100 mph (160.93 km/h) | 95.54 mph (153.76 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
