Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-19 | 285/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.4 (797.6) | 33.46 (850) | 2.06 (52.4) 6.6% |
| Width inches (mm) | 8.86 (225) | 11.22 (285) | 2.36 (60) 26.7% |
| Circum. inches (mm) | 98.65 (2505.73) | 105.13 (2670.35) | 6.48 (164.62) 6.6% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 6.73 (171) | 0.53 (13.5) 8.6% |
| Revolutions per mile (km) | 642.26 (399.08) | 602.67 (374.48) | -39.59 (-24.6) -6.2% |
285/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.31 mph (34.3 km/h) |
| 25 mph (40.23 km/h) | 26.64 mph (42.88 km/h) |
| 30 mph (48.28 km/h) | 31.97 mph (51.45 km/h) |
| 35 mph (56.33 km/h) | 37.3 mph (60.03 km/h) |
| 40 mph (64.37 km/h) | 42.63 mph (68.6 km/h) |
| 45 mph (72.42 km/h) | 47.96 mph (77.18 km/h) |
| 50 mph (80.47 km/h) | 53.28 mph (85.75 km/h) |
| 55 mph (88.51 km/h) | 58.61 mph (94.33 km/h) |
| 60 mph (96.56 km/h) | 63.94 mph (102.9 km/h) |
| 65 mph (104.61 km/h) | 69.27 mph (111.48 km/h) |
| 70 mph (112.65 km/h) | 74.6 mph (120.06 km/h) |
| 75 mph (120.7 km/h) | 79.93 mph (128.63 km/h) |
| 80 mph (128.75 km/h) | 85.26 mph (137.21 km/h) |
| 85 mph (136.79 km/h) | 90.58 mph (145.78 km/h) |
| 90 mph (144.84 km/h) | 95.91 mph (154.36 km/h) |
| 95 mph (152.89 km/h) | 101.24 mph (162.93 km/h) |
| 100 mph (160.93 km/h) | 106.57 mph (171.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1534 | 1782 | 1919 | 2004 | 2095 | 2160 | 2232 | 2317 | 2434 | 2552 | 2682 | 2787 | 2976 | 3185 | 3348 | 3452 | 3511 | 3727 | 4027 | 4679 |
Better Fuel Economy Factory Ratios Increased Power
