Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/40-20 | 245/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.72 (704) | 28.57 (725.8) | 0.86 (21.8) 3.1% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 87.07 (2211.68) | 89.77 (2280.17) | 2.7 (68.49) 3.1% |
| Sidewall Height inches (mm) | 3.86 (98) | 5.79 (147) | 1.93 (49) 50% |
| Revolutions per mile (km) | 727.66 (452.14) | 705.8 (438.56) | -21.86 (-13.58) -3% |
245/60-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.18 km/h) |
| 25 mph (40.23 km/h) | 25.77 mph (41.48 km/h) |
| 30 mph (48.28 km/h) | 30.93 mph (49.78 km/h) |
| 35 mph (56.33 km/h) | 36.08 mph (58.07 km/h) |
| 40 mph (64.37 km/h) | 41.24 mph (66.37 km/h) |
| 45 mph (72.42 km/h) | 46.39 mph (74.66 km/h) |
| 50 mph (80.47 km/h) | 51.55 mph (82.96 km/h) |
| 55 mph (88.51 km/h) | 56.7 mph (91.26 km/h) |
| 60 mph (96.56 km/h) | 61.86 mph (99.55 km/h) |
| 65 mph (104.61 km/h) | 67.01 mph (107.85 km/h) |
| 70 mph (112.65 km/h) | 72.17 mph (116.14 km/h) |
| 75 mph (120.7 km/h) | 77.32 mph (124.44 km/h) |
| 80 mph (128.75 km/h) | 82.48 mph (132.73 km/h) |
| 85 mph (136.79 km/h) | 87.63 mph (141.03 km/h) |
| 90 mph (144.84 km/h) | 92.79 mph (149.33 km/h) |
| 95 mph (152.89 km/h) | 97.94 mph (157.62 km/h) |
| 100 mph (160.93 km/h) | 103.1 mph (165.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1796 | 2087 | 2247 | 2346 | 2453 | 2530 | 2614 | 2713 | 2851 | 2988 | 3141 | 3264 | 3485 | 3730 | 3921 | 4043 | 4112 | 4364 | 4716 | 5480 |
Better Fuel Economy Factory Ratios Increased Power
