Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/60-17 | 190/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.8) | 25.23 (640.8) | 0.2 (5) 0.8% |
| Width inches (mm) | 6.69 (170) | 7.48 (190) | 0.79 (20) 11.8% |
| Circum. inches (mm) | 78.64 (1997.42) | 79.26 (2013.13) | 0.62 (15.71) 0.8% |
| Sidewall Height inches (mm) | 4.02 (102) | 4.11 (104.5) | 0.1 (2.5) 2.5% |
| Revolutions per mile (km) | 805.71 (500.64) | 799.42 (496.74) | -6.29 (-3.91) -0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.44 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.55 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.66 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.77 km/h) |
| 40 mph (64.37 km/h) | 40.31 mph (64.88 km/h) |
| 45 mph (72.42 km/h) | 45.35 mph (72.99 km/h) |
| 50 mph (80.47 km/h) | 50.39 mph (81.1 km/h) |
| 55 mph (88.51 km/h) | 55.43 mph (89.21 km/h) |
| 60 mph (96.56 km/h) | 60.47 mph (97.32 km/h) |
| 65 mph (104.61 km/h) | 65.51 mph (105.43 km/h) |
| 70 mph (112.65 km/h) | 70.55 mph (113.54 km/h) |
| 75 mph (120.7 km/h) | 75.59 mph (121.65 km/h) |
| 80 mph (128.75 km/h) | 80.63 mph (129.76 km/h) |
| 85 mph (136.79 km/h) | 85.67 mph (137.87 km/h) |
| 90 mph (144.84 km/h) | 90.71 mph (145.98 km/h) |
| 95 mph (152.89 km/h) | 95.75 mph (154.09 km/h) |
| 100 mph (160.93 km/h) | 100.79 mph (162.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2034 | 2363 | 2545 | 2658 | 2779 | 2865 | 2961 | 3073 | 3229 | 3385 | 3558 | 3697 | 3948 | 4225 | 4441 | 4580 | 4657 | 4943 | 5341 | 6207 |
Better Fuel Economy Factory Ratios Increased Power
