Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/75-17 | 255/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.3) | 33.06 (839.7) | 1 (25.4) 3.1% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 100.72 (2558.2) | 103.86 (2638) | 3.14 (79.8) 3.1% |
| Sidewall Height inches (mm) | 7.53 (191.25) | 7.53 (191.25) | 0 (0) 0% |
| Revolutions per mile (km) | 629.09 (390.9) | 610.06 (379.07) | -19.03 (-11.82) -3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.19 km/h) |
| 25 mph (40.23 km/h) | 25.78 mph (41.49 km/h) |
| 30 mph (48.28 km/h) | 30.94 mph (49.79 km/h) |
| 35 mph (56.33 km/h) | 36.09 mph (58.08 km/h) |
| 40 mph (64.37 km/h) | 41.25 mph (66.38 km/h) |
| 45 mph (72.42 km/h) | 46.4 mph (74.68 km/h) |
| 50 mph (80.47 km/h) | 51.56 mph (82.98 km/h) |
| 55 mph (88.51 km/h) | 56.72 mph (91.28 km/h) |
| 60 mph (96.56 km/h) | 61.87 mph (99.57 km/h) |
| 65 mph (104.61 km/h) | 67.03 mph (107.87 km/h) |
| 70 mph (112.65 km/h) | 72.18 mph (116.17 km/h) |
| 75 mph (120.7 km/h) | 77.34 mph (124.47 km/h) |
| 80 mph (128.75 km/h) | 82.5 mph (132.76 km/h) |
| 85 mph (136.79 km/h) | 87.65 mph (141.06 km/h) |
| 90 mph (144.84 km/h) | 92.81 mph (149.36 km/h) |
| 95 mph (152.89 km/h) | 97.96 mph (157.66 km/h) |
| 100 mph (160.93 km/h) | 103.12 mph (165.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1804 | 1942 | 2028 | 2121 | 2187 | 2259 | 2345 | 2464 | 2583 | 2715 | 2821 | 3012 | 3224 | 3389 | 3495 | 3554 | 3772 | 4076 | 4737 |
Better Fuel Economy Factory Ratios Increased Power
