Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/55-18 | 275/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.34 (770.7) | 30.99 (787.2) | 0.65 (16.5) 2.1% |
| Width inches (mm) | 11.22 (285) | 10.83 (275) | -0.39 (-10) -3.5% |
| Circum. inches (mm) | 95.32 (2421.23) | 97.36 (2473.06) | 2.04 (51.84) 2.1% |
| Sidewall Height inches (mm) | 6.17 (156.75) | 6.5 (165) | 0.32 (8.25) 5.3% |
| Revolutions per mile (km) | 664.68 (413.01) | 650.75 (404.36) | -13.93 (-8.66) -2.1% |
275/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.43 mph (32.88 km/h) |
| 25 mph (40.23 km/h) | 25.54 mph (41.1 km/h) |
| 30 mph (48.28 km/h) | 30.64 mph (49.31 km/h) |
| 35 mph (56.33 km/h) | 35.75 mph (57.53 km/h) |
| 40 mph (64.37 km/h) | 40.86 mph (65.75 km/h) |
| 45 mph (72.42 km/h) | 45.96 mph (73.97 km/h) |
| 50 mph (80.47 km/h) | 51.07 mph (82.19 km/h) |
| 55 mph (88.51 km/h) | 56.18 mph (90.41 km/h) |
| 60 mph (96.56 km/h) | 61.28 mph (98.63 km/h) |
| 65 mph (104.61 km/h) | 66.39 mph (106.85 km/h) |
| 70 mph (112.65 km/h) | 71.5 mph (115.07 km/h) |
| 75 mph (120.7 km/h) | 76.61 mph (123.29 km/h) |
| 80 mph (128.75 km/h) | 81.71 mph (131.5 km/h) |
| 85 mph (136.79 km/h) | 86.82 mph (139.72 km/h) |
| 90 mph (144.84 km/h) | 91.93 mph (147.94 km/h) |
| 95 mph (152.89 km/h) | 97.03 mph (156.16 km/h) |
| 100 mph (160.93 km/h) | 102.14 mph (164.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1656 | 1924 | 2072 | 2163 | 2262 | 2333 | 2410 | 2502 | 2629 | 2755 | 2896 | 3009 | 3213 | 3439 | 3615 | 3728 | 3791 | 4024 | 4348 | 5053 |
Better Fuel Economy Factory Ratios Increased Power
