Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 160/60-18 | 170/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.56 (649.2) | 25.36 (644.2) | -0.2 (-5) -0.8% |
| Width inches (mm) | 6.3 (160) | 6.69 (170) | 0.39 (10) 6.3% |
| Circum. inches (mm) | 80.3 (2039.52) | 79.68 (2023.81) | -0.62 (-15.71) -0.8% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.68 (93.5) | -0.1 (-2.5) -2.6% |
| Revolutions per mile (km) | 789.08 (490.31) | 795.2 (494.12) | 6.12 (3.81) 0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.94 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.92 km/h) |
| 30 mph (48.28 km/h) | 29.77 mph (47.91 km/h) |
| 35 mph (56.33 km/h) | 34.73 mph (55.89 km/h) |
| 40 mph (64.37 km/h) | 39.69 mph (63.88 km/h) |
| 45 mph (72.42 km/h) | 44.65 mph (71.86 km/h) |
| 50 mph (80.47 km/h) | 49.61 mph (79.85 km/h) |
| 55 mph (88.51 km/h) | 54.58 mph (87.83 km/h) |
| 60 mph (96.56 km/h) | 59.54 mph (95.82 km/h) |
| 65 mph (104.61 km/h) | 64.5 mph (103.8 km/h) |
| 70 mph (112.65 km/h) | 69.46 mph (111.79 km/h) |
| 75 mph (120.7 km/h) | 74.42 mph (119.77 km/h) |
| 80 mph (128.75 km/h) | 79.38 mph (127.76 km/h) |
| 85 mph (136.79 km/h) | 84.35 mph (135.74 km/h) |
| 90 mph (144.84 km/h) | 89.31 mph (143.73 km/h) |
| 95 mph (152.89 km/h) | 94.27 mph (151.71 km/h) |
| 100 mph (160.93 km/h) | 99.23 mph (159.7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 2351 | 2532 | 2644 | 2764 | 2850 | 2945 | 3057 | 3212 | 3367 | 3539 | 3677 | 3927 | 4202 | 4418 | 4555 | 4633 | 4917 | 5313 | 6174 |
Better Fuel Economy Factory Ratios Increased Power
