Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/65-18 | 285/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.31 (795.2) | 32.59 (827.7) | 1.28 (32.5) 4.1% |
| Width inches (mm) | 10.24 (260) | 11.22 (285) | 0.98 (25) 9.6% |
| Circum. inches (mm) | 98.35 (2498.19) | 102.37 (2600.3) | 4.02 (102.1) 4.1% |
| Sidewall Height inches (mm) | 6.65 (169) | 7.29 (185.25) | 0.64 (16.25) 9.6% |
| Revolutions per mile (km) | 644.2 (400.29) | 618.91 (384.57) | -25.29 (-15.72) -3.9% |
285/65-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.5 km/h) |
| 25 mph (40.23 km/h) | 26.02 mph (41.88 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.25 km/h) |
| 35 mph (56.33 km/h) | 36.43 mph (58.63 km/h) |
| 40 mph (64.37 km/h) | 41.63 mph (67 km/h) |
| 45 mph (72.42 km/h) | 46.84 mph (75.38 km/h) |
| 50 mph (80.47 km/h) | 52.04 mph (83.76 km/h) |
| 55 mph (88.51 km/h) | 57.25 mph (92.13 km/h) |
| 60 mph (96.56 km/h) | 62.45 mph (100.51 km/h) |
| 65 mph (104.61 km/h) | 67.66 mph (108.88 km/h) |
| 70 mph (112.65 km/h) | 72.86 mph (117.26 km/h) |
| 75 mph (120.7 km/h) | 78.07 mph (125.63 km/h) |
| 80 mph (128.75 km/h) | 83.27 mph (134.01 km/h) |
| 85 mph (136.79 km/h) | 88.47 mph (142.39 km/h) |
| 90 mph (144.84 km/h) | 93.68 mph (150.76 km/h) |
| 95 mph (152.89 km/h) | 98.88 mph (159.14 km/h) |
| 100 mph (160.93 km/h) | 104.09 mph (167.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1575 | 1830 | 1970 | 2058 | 2151 | 2218 | 2292 | 2379 | 2500 | 2621 | 2755 | 2862 | 3056 | 3271 | 3438 | 3545 | 3606 | 3827 | 4135 | 4805 |
Better Fuel Economy Factory Ratios Increased Power
