Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/60-17 | 305/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.46 (773.8) | 31.41 (797.8) | 0.94 (24) 3.1% |
| Width inches (mm) | 11.22 (285) | 12.01 (305) | 0.79 (20) 7% |
| Circum. inches (mm) | 95.71 (2430.96) | 98.68 (2506.36) | 2.97 (75.4) 3.1% |
| Sidewall Height inches (mm) | 6.73 (171) | 7.2 (183) | 0.47 (12) 7% |
| Revolutions per mile (km) | 662.02 (411.36) | 642.1 (398.98) | -19.92 (-12.37) -3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.19 km/h) |
| 25 mph (40.23 km/h) | 25.78 mph (41.48 km/h) |
| 30 mph (48.28 km/h) | 30.93 mph (49.78 km/h) |
| 35 mph (56.33 km/h) | 36.09 mph (58.07 km/h) |
| 40 mph (64.37 km/h) | 41.24 mph (66.37 km/h) |
| 45 mph (72.42 km/h) | 46.4 mph (74.67 km/h) |
| 50 mph (80.47 km/h) | 51.55 mph (82.96 km/h) |
| 55 mph (88.51 km/h) | 56.71 mph (91.26 km/h) |
| 60 mph (96.56 km/h) | 61.86 mph (99.56 km/h) |
| 65 mph (104.61 km/h) | 67.02 mph (107.85 km/h) |
| 70 mph (112.65 km/h) | 72.17 mph (116.15 km/h) |
| 75 mph (120.7 km/h) | 77.33 mph (124.44 km/h) |
| 80 mph (128.75 km/h) | 82.48 mph (132.74 km/h) |
| 85 mph (136.79 km/h) | 87.64 mph (141.04 km/h) |
| 90 mph (144.84 km/h) | 92.79 mph (149.33 km/h) |
| 95 mph (152.89 km/h) | 97.95 mph (157.63 km/h) |
| 100 mph (160.93 km/h) | 103.1 mph (165.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1634 | 1898 | 2044 | 2135 | 2232 | 2302 | 2378 | 2468 | 2594 | 2719 | 2858 | 2969 | 3171 | 3393 | 3567 | 3678 | 3741 | 3970 | 4290 | 4986 |
Better Fuel Economy Factory Ratios Increased Power
