Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-16 | 285/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.88 (758.9) | 31.46 (799.2) | 1.59 (40.3) 5.3% |
| Width inches (mm) | 9.25 (235) | 11.22 (285) | 1.97 (50) 21.3% |
| Circum. inches (mm) | 93.86 (2384.15) | 98.85 (2510.76) | 4.98 (126.61) 5.3% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 6.73 (171) | -0.21 (-5.25) -3% |
| Revolutions per mile (km) | 675.02 (419.44) | 640.98 (398.28) | -34.04 (-21.15) -5% |
285/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.06 mph (33.9 km/h) |
| 25 mph (40.23 km/h) | 26.33 mph (42.37 km/h) |
| 30 mph (48.28 km/h) | 31.59 mph (50.84 km/h) |
| 35 mph (56.33 km/h) | 36.86 mph (59.32 km/h) |
| 40 mph (64.37 km/h) | 42.12 mph (67.79 km/h) |
| 45 mph (72.42 km/h) | 47.39 mph (76.27 km/h) |
| 50 mph (80.47 km/h) | 52.66 mph (84.74 km/h) |
| 55 mph (88.51 km/h) | 57.92 mph (93.21 km/h) |
| 60 mph (96.56 km/h) | 63.19 mph (101.69 km/h) |
| 65 mph (104.61 km/h) | 68.45 mph (110.16 km/h) |
| 70 mph (112.65 km/h) | 73.72 mph (118.64 km/h) |
| 75 mph (120.7 km/h) | 78.98 mph (127.11 km/h) |
| 80 mph (128.75 km/h) | 84.25 mph (135.58 km/h) |
| 85 mph (136.79 km/h) | 89.51 mph (144.06 km/h) |
| 90 mph (144.84 km/h) | 94.78 mph (152.53 km/h) |
| 95 mph (152.89 km/h) | 100.04 mph (161.01 km/h) |
| 100 mph (160.93 km/h) | 105.31 mph (169.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2041 | 2131 | 2228 | 2298 | 2374 | 2464 | 2589 | 2714 | 2853 | 2964 | 3165 | 3387 | 3561 | 3672 | 3734 | 3963 | 4283 | 4977 |
Better Fuel Economy Factory Ratios Increased Power
