Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/55-18 | 265/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.34 (770.7) | 32.61 (828.2) | 2.26 (57.5) 7.5% |
| Width inches (mm) | 11.22 (285) | 10.43 (265) | -0.79 (-20) -7% |
| Circum. inches (mm) | 95.32 (2421.23) | 102.44 (2601.87) | 7.11 (180.64) 7.5% |
| Sidewall Height inches (mm) | 6.17 (156.75) | 7.3 (185.5) | 1.13 (28.75) 18.3% |
| Revolutions per mile (km) | 664.68 (413.01) | 618.53 (384.34) | -46.15 (-28.67) -6.9% |
265/70-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.59 km/h) |
| 25 mph (40.23 km/h) | 26.87 mph (43.24 km/h) |
| 30 mph (48.28 km/h) | 32.24 mph (51.88 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.53 km/h) |
| 40 mph (64.37 km/h) | 42.98 mph (69.18 km/h) |
| 45 mph (72.42 km/h) | 48.36 mph (77.82 km/h) |
| 50 mph (80.47 km/h) | 53.73 mph (86.47 km/h) |
| 55 mph (88.51 km/h) | 59.1 mph (95.12 km/h) |
| 60 mph (96.56 km/h) | 64.48 mph (103.76 km/h) |
| 65 mph (104.61 km/h) | 69.85 mph (112.41 km/h) |
| 70 mph (112.65 km/h) | 75.22 mph (121.06 km/h) |
| 75 mph (120.7 km/h) | 80.6 mph (129.71 km/h) |
| 80 mph (128.75 km/h) | 85.97 mph (138.35 km/h) |
| 85 mph (136.79 km/h) | 91.34 mph (147 km/h) |
| 90 mph (144.84 km/h) | 96.71 mph (155.65 km/h) |
| 95 mph (152.89 km/h) | 102.09 mph (164.29 km/h) |
| 100 mph (160.93 km/h) | 107.46 mph (172.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1574 | 1829 | 1969 | 2056 | 2150 | 2217 | 2291 | 2378 | 2498 | 2619 | 2753 | 2860 | 3054 | 3269 | 3436 | 3543 | 3604 | 3825 | 4133 | 4803 |
Better Fuel Economy Factory Ratios Increased Power
