Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/65-13 | 245/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.49 (596.7) | 24.72 (627.8) | 1.22 (31.1) 5.2% |
| Width inches (mm) | 8.07 (205) | 9.65 (245) | 1.57 (40) 19.5% |
| Circum. inches (mm) | 73.8 (1874.59) | 77.65 (1972.29) | 3.85 (97.7) 5.2% |
| Sidewall Height inches (mm) | 5.25 (133.25) | 3.86 (98) | -1.39 (-35.25) -26.5% |
| Revolutions per mile (km) | 858.51 (533.45) | 815.98 (507.02) | -42.53 (-26.43) -5% |
245/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.04 mph (33.86 km/h) |
| 25 mph (40.23 km/h) | 26.3 mph (42.33 km/h) |
| 30 mph (48.28 km/h) | 31.56 mph (50.8 km/h) |
| 35 mph (56.33 km/h) | 36.82 mph (59.26 km/h) |
| 40 mph (64.37 km/h) | 42.08 mph (67.73 km/h) |
| 45 mph (72.42 km/h) | 47.35 mph (76.2 km/h) |
| 50 mph (80.47 km/h) | 52.61 mph (84.66 km/h) |
| 55 mph (88.51 km/h) | 57.87 mph (93.13 km/h) |
| 60 mph (96.56 km/h) | 63.13 mph (101.59 km/h) |
| 65 mph (104.61 km/h) | 68.39 mph (110.06 km/h) |
| 70 mph (112.65 km/h) | 73.65 mph (118.53 km/h) |
| 75 mph (120.7 km/h) | 78.91 mph (126.99 km/h) |
| 80 mph (128.75 km/h) | 84.17 mph (135.46 km/h) |
| 85 mph (136.79 km/h) | 89.43 mph (143.92 km/h) |
| 90 mph (144.84 km/h) | 94.69 mph (152.39 km/h) |
| 95 mph (152.89 km/h) | 99.95 mph (160.86 km/h) |
| 100 mph (160.93 km/h) | 105.21 mph (169.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2412 | 2598 | 2713 | 2836 | 2925 | 3022 | 3137 | 3296 | 3455 | 3632 | 3773 | 4029 | 4312 | 4533 | 4674 | 4754 | 5045 | 5452 | 6336 |
Better Fuel Economy Factory Ratios Increased Power
