Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 190/55-17 | 170/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.23 (640.8) | 25.03 (635.8) | -0.2 (-5) -0.8% |
| Width inches (mm) | 7.48 (190) | 6.69 (170) | -0.79 (-20) -10.5% |
| Circum. inches (mm) | 79.26 (2013.13) | 78.64 (1997.42) | -0.62 (-15.71) -0.8% |
| Sidewall Height inches (mm) | 4.11 (104.5) | 4.02 (102) | -0.1 (-2.5) -2.4% |
| Revolutions per mile (km) | 799.42 (496.74) | 805.71 (500.64) | 6.29 (3.91) 0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.94 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.92 km/h) |
| 30 mph (48.28 km/h) | 29.77 mph (47.9 km/h) |
| 35 mph (56.33 km/h) | 34.73 mph (55.89 km/h) |
| 40 mph (64.37 km/h) | 39.69 mph (63.87 km/h) |
| 45 mph (72.42 km/h) | 44.65 mph (71.86 km/h) |
| 50 mph (80.47 km/h) | 49.61 mph (79.84 km/h) |
| 55 mph (88.51 km/h) | 54.57 mph (87.82 km/h) |
| 60 mph (96.56 km/h) | 59.53 mph (95.81 km/h) |
| 65 mph (104.61 km/h) | 64.49 mph (103.79 km/h) |
| 70 mph (112.65 km/h) | 69.45 mph (111.78 km/h) |
| 75 mph (120.7 km/h) | 74.41 mph (119.76 km/h) |
| 80 mph (128.75 km/h) | 79.38 mph (127.74 km/h) |
| 85 mph (136.79 km/h) | 84.34 mph (135.73 km/h) |
| 90 mph (144.84 km/h) | 89.3 mph (143.71 km/h) |
| 95 mph (152.89 km/h) | 94.26 mph (151.7 km/h) |
| 100 mph (160.93 km/h) | 99.22 mph (159.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2050 | 2382 | 2565 | 2679 | 2801 | 2888 | 2984 | 3097 | 3254 | 3411 | 3586 | 3726 | 3979 | 4258 | 4476 | 4616 | 4694 | 4982 | 5383 | 6256 |
Better Fuel Economy Factory Ratios Increased Power
