Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 190/50-17 | 170/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.48 (621.8) | 25.03 (635.8) | 0.55 (14) 2.3% |
| Width inches (mm) | 7.48 (190) | 6.69 (170) | -0.79 (-20) -10.5% |
| Circum. inches (mm) | 76.91 (1953.44) | 78.64 (1997.42) | 1.73 (43.98) 2.3% |
| Sidewall Height inches (mm) | 3.74 (95) | 4.02 (102) | 0.28 (7) 7.4% |
| Revolutions per mile (km) | 823.85 (511.92) | 805.71 (500.64) | -18.14 (-11.27) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.45 mph (32.91 km/h) |
| 25 mph (40.23 km/h) | 25.56 mph (41.14 km/h) |
| 30 mph (48.28 km/h) | 30.68 mph (49.37 km/h) |
| 35 mph (56.33 km/h) | 35.79 mph (57.6 km/h) |
| 40 mph (64.37 km/h) | 40.9 mph (65.82 km/h) |
| 45 mph (72.42 km/h) | 46.01 mph (74.05 km/h) |
| 50 mph (80.47 km/h) | 51.13 mph (82.28 km/h) |
| 55 mph (88.51 km/h) | 56.24 mph (90.51 km/h) |
| 60 mph (96.56 km/h) | 61.35 mph (98.73 km/h) |
| 65 mph (104.61 km/h) | 66.46 mph (106.96 km/h) |
| 70 mph (112.65 km/h) | 71.58 mph (115.19 km/h) |
| 75 mph (120.7 km/h) | 76.69 mph (123.42 km/h) |
| 80 mph (128.75 km/h) | 81.8 mph (131.65 km/h) |
| 85 mph (136.79 km/h) | 86.91 mph (139.87 km/h) |
| 90 mph (144.84 km/h) | 92.03 mph (148.1 km/h) |
| 95 mph (152.89 km/h) | 97.14 mph (156.33 km/h) |
| 100 mph (160.93 km/h) | 102.25 mph (164.56 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
