Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/60-17 | 190/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.8) | 24.48 (621.8) | -0.55 (-14) -2.2% |
| Width inches (mm) | 6.69 (170) | 7.48 (190) | 0.79 (20) 11.8% |
| Circum. inches (mm) | 78.64 (1997.42) | 76.91 (1953.44) | -1.73 (-43.98) -2.2% |
| Sidewall Height inches (mm) | 4.02 (102) | 3.74 (95) | -0.28 (-7) -6.9% |
| Revolutions per mile (km) | 805.71 (500.64) | 823.85 (511.92) | 18.14 (11.27) 2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.56 mph (31.48 km/h) |
| 25 mph (40.23 km/h) | 24.45 mph (39.35 km/h) |
| 30 mph (48.28 km/h) | 29.34 mph (47.22 km/h) |
| 35 mph (56.33 km/h) | 34.23 mph (55.09 km/h) |
| 40 mph (64.37 km/h) | 39.12 mph (62.96 km/h) |
| 45 mph (72.42 km/h) | 44.01 mph (70.83 km/h) |
| 50 mph (80.47 km/h) | 48.9 mph (78.7 km/h) |
| 55 mph (88.51 km/h) | 53.79 mph (86.57 km/h) |
| 60 mph (96.56 km/h) | 58.68 mph (94.43 km/h) |
| 65 mph (104.61 km/h) | 63.57 mph (102.3 km/h) |
| 70 mph (112.65 km/h) | 68.46 mph (110.17 km/h) |
| 75 mph (120.7 km/h) | 73.35 mph (118.04 km/h) |
| 80 mph (128.75 km/h) | 78.24 mph (125.91 km/h) |
| 85 mph (136.79 km/h) | 83.13 mph (133.78 km/h) |
| 90 mph (144.84 km/h) | 88.02 mph (141.65 km/h) |
| 95 mph (152.89 km/h) | 92.91 mph (149.52 km/h) |
| 100 mph (160.93 km/h) | 97.8 mph (157.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2097 | 2436 | 2623 | 2739 | 2864 | 2953 | 3051 | 3167 | 3328 | 3488 | 3667 | 3809 | 4068 | 4354 | 4577 | 4719 | 4800 | 5094 | 5505 | 6397 |
Better Fuel Economy Factory Ratios Increased Power
