Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-17 | 190/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.5 (647.8) | 25.98 (659.8) | 0.47 (12) 1.9% |
| Width inches (mm) | 7.09 (180) | 7.48 (190) | 0.39 (10) 5.6% |
| Circum. inches (mm) | 80.12 (2035.12) | 81.61 (2072.82) | 1.48 (37.7) 1.9% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.49 (114) | 0.24 (6) 5.6% |
| Revolutions per mile (km) | 790.78 (491.37) | 776.4 (482.43) | -14.38 (-8.94) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.78 km/h) |
| 25 mph (40.23 km/h) | 25.46 mph (40.98 km/h) |
| 30 mph (48.28 km/h) | 30.56 mph (49.17 km/h) |
| 35 mph (56.33 km/h) | 35.65 mph (57.37 km/h) |
| 40 mph (64.37 km/h) | 40.74 mph (65.57 km/h) |
| 45 mph (72.42 km/h) | 45.83 mph (73.76 km/h) |
| 50 mph (80.47 km/h) | 50.93 mph (81.96 km/h) |
| 55 mph (88.51 km/h) | 56.02 mph (90.15 km/h) |
| 60 mph (96.56 km/h) | 61.11 mph (98.35 km/h) |
| 65 mph (104.61 km/h) | 66.2 mph (106.55 km/h) |
| 70 mph (112.65 km/h) | 71.3 mph (114.74 km/h) |
| 75 mph (120.7 km/h) | 76.39 mph (122.94 km/h) |
| 80 mph (128.75 km/h) | 81.48 mph (131.13 km/h) |
| 85 mph (136.79 km/h) | 86.57 mph (139.33 km/h) |
| 90 mph (144.84 km/h) | 91.67 mph (147.52 km/h) |
| 95 mph (152.89 km/h) | 96.76 mph (155.72 km/h) |
| 100 mph (160.93 km/h) | 101.85 mph (163.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 2295 | 2472 | 2581 | 2699 | 2783 | 2875 | 2985 | 3136 | 3287 | 3456 | 3590 | 3834 | 4103 | 4313 | 4448 | 4523 | 4801 | 5188 | 6028 |
Better Fuel Economy Factory Ratios Increased Power
