Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/50-17 | 60/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.72 (551.8) | 21.25 (539.8) | -0.47 (-12) -2.2% |
| Width inches (mm) | 4.72 (120) | 2.36 (60) | -2.36 (-60) -50% |
| Circum. inches (mm) | 68.25 (1733.53) | 66.77 (1695.83) | -1.48 (-37.7) -2.2% |
| Sidewall Height inches (mm) | 2.36 (60) | 2.13 (54) | -0.24 (-6) -10% |
| Revolutions per mile (km) | 928.36 (576.86) | 949 (589.68) | 20.64 (12.82) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.36 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.23 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.1 km/h) |
| 40 mph (64.37 km/h) | 39.13 mph (62.97 km/h) |
| 45 mph (72.42 km/h) | 44.02 mph (70.85 km/h) |
| 50 mph (80.47 km/h) | 48.91 mph (78.72 km/h) |
| 55 mph (88.51 km/h) | 53.8 mph (86.59 km/h) |
| 60 mph (96.56 km/h) | 58.7 mph (94.46 km/h) |
| 65 mph (104.61 km/h) | 63.59 mph (102.33 km/h) |
| 70 mph (112.65 km/h) | 68.48 mph (110.2 km/h) |
| 75 mph (120.7 km/h) | 73.37 mph (118.08 km/h) |
| 80 mph (128.75 km/h) | 78.26 mph (125.95 km/h) |
| 85 mph (136.79 km/h) | 83.15 mph (133.82 km/h) |
| 90 mph (144.84 km/h) | 88.04 mph (141.69 km/h) |
| 95 mph (152.89 km/h) | 92.93 mph (149.56 km/h) |
| 100 mph (160.93 km/h) | 97.83 mph (157.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
