Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/65-18 | 255/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.07 (814.7) | 32.06 (814.3) | -0.02 (-0.4) -0% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 100.77 (2559.46) | 100.72 (2558.2) | -0.05 (-1.26) -0% |
| Sidewall Height inches (mm) | 7.04 (178.75) | 7.53 (191.25) | 0.49 (12.5) 7% |
| Revolutions per mile (km) | 628.78 (390.71) | 629.09 (390.9) | 0.31 (0.19) 0% |
255/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.99 mph (32.17 km/h) |
| 25 mph (40.23 km/h) | 24.99 mph (40.21 km/h) |
| 30 mph (48.28 km/h) | 29.99 mph (48.26 km/h) |
| 35 mph (56.33 km/h) | 34.98 mph (56.3 km/h) |
| 40 mph (64.37 km/h) | 39.98 mph (64.34 km/h) |
| 45 mph (72.42 km/h) | 44.98 mph (72.39 km/h) |
| 50 mph (80.47 km/h) | 49.98 mph (80.43 km/h) |
| 55 mph (88.51 km/h) | 54.97 mph (88.47 km/h) |
| 60 mph (96.56 km/h) | 59.97 mph (96.51 km/h) |
| 65 mph (104.61 km/h) | 64.97 mph (104.56 km/h) |
| 70 mph (112.65 km/h) | 69.97 mph (112.6 km/h) |
| 75 mph (120.7 km/h) | 74.96 mph (120.64 km/h) |
| 80 mph (128.75 km/h) | 79.96 mph (128.68 km/h) |
| 85 mph (136.79 km/h) | 84.96 mph (136.73 km/h) |
| 90 mph (144.84 km/h) | 89.96 mph (144.77 km/h) |
| 95 mph (152.89 km/h) | 94.95 mph (152.81 km/h) |
| 100 mph (160.93 km/h) | 99.95 mph (160.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1601 | 1860 | 2003 | 2091 | 2187 | 2255 | 2330 | 2418 | 2541 | 2664 | 2800 | 2909 | 3106 | 3324 | 3495 | 3604 | 3665 | 3890 | 4203 | 4885 |
Better Fuel Economy Factory Ratios Increased Power
