Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-17 | 185/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.54 (648.8) | 25.74 (653.8) | 0.2 (5) 0.8% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 80.25 (2038.27) | 80.87 (2053.97) | 0.62 (15.71) 0.8% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.37 (111) | 0.1 (2.5) 2.3% |
| Revolutions per mile (km) | 789.57 (490.61) | 783.53 (486.86) | -6.04 (-3.75) -0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.15 mph (32.43 km/h) |
| 25 mph (40.23 km/h) | 25.19 mph (40.54 km/h) |
| 30 mph (48.28 km/h) | 30.23 mph (48.65 km/h) |
| 35 mph (56.33 km/h) | 35.27 mph (56.76 km/h) |
| 40 mph (64.37 km/h) | 40.31 mph (64.87 km/h) |
| 45 mph (72.42 km/h) | 45.35 mph (72.98 km/h) |
| 50 mph (80.47 km/h) | 50.39 mph (81.09 km/h) |
| 55 mph (88.51 km/h) | 55.42 mph (89.2 km/h) |
| 60 mph (96.56 km/h) | 60.46 mph (97.3 km/h) |
| 65 mph (104.61 km/h) | 65.5 mph (105.41 km/h) |
| 70 mph (112.65 km/h) | 70.54 mph (113.52 km/h) |
| 75 mph (120.7 km/h) | 75.58 mph (121.63 km/h) |
| 80 mph (128.75 km/h) | 80.62 mph (129.74 km/h) |
| 85 mph (136.79 km/h) | 85.66 mph (137.85 km/h) |
| 90 mph (144.84 km/h) | 90.69 mph (145.96 km/h) |
| 95 mph (152.89 km/h) | 95.73 mph (154.07 km/h) |
| 100 mph (160.93 km/h) | 100.77 mph (162.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1994 | 2316 | 2495 | 2605 | 2724 | 2808 | 2902 | 3012 | 3165 | 3318 | 3487 | 3623 | 3869 | 4141 | 4353 | 4488 | 4565 | 4845 | 5235 | 6084 |
Better Fuel Economy Factory Ratios Increased Power
