Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/55-17 | 190/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.36 (618.8) | 25.23 (640.8) | 0.87 (22) 3.6% |
| Width inches (mm) | 6.69 (170) | 7.48 (190) | 0.79 (20) 11.8% |
| Circum. inches (mm) | 76.54 (1944.02) | 79.26 (2013.13) | 2.72 (69.12) 3.6% |
| Sidewall Height inches (mm) | 3.68 (93.5) | 4.11 (104.5) | 0.43 (11) 11.8% |
| Revolutions per mile (km) | 827.84 (514.4) | 799.42 (496.74) | -28.42 (-17.66) -3.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.71 mph (33.33 km/h) |
| 25 mph (40.23 km/h) | 25.89 mph (41.66 km/h) |
| 30 mph (48.28 km/h) | 31.07 mph (50 km/h) |
| 35 mph (56.33 km/h) | 36.24 mph (58.33 km/h) |
| 40 mph (64.37 km/h) | 41.42 mph (66.66 km/h) |
| 45 mph (72.42 km/h) | 46.6 mph (75 km/h) |
| 50 mph (80.47 km/h) | 51.78 mph (83.33 km/h) |
| 55 mph (88.51 km/h) | 56.96 mph (91.66 km/h) |
| 60 mph (96.56 km/h) | 62.13 mph (99.99 km/h) |
| 65 mph (104.61 km/h) | 67.31 mph (108.33 km/h) |
| 70 mph (112.65 km/h) | 72.49 mph (116.66 km/h) |
| 75 mph (120.7 km/h) | 77.67 mph (124.99 km/h) |
| 80 mph (128.75 km/h) | 82.84 mph (133.33 km/h) |
| 85 mph (136.79 km/h) | 88.02 mph (141.66 km/h) |
| 90 mph (144.84 km/h) | 93.2 mph (149.99 km/h) |
| 95 mph (152.89 km/h) | 98.38 mph (158.32 km/h) |
| 100 mph (160.93 km/h) | 103.56 mph (166.66 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
