Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-15 | 175/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.58 (573.5) | 21.58 (548.1) | -1 (-25.4) -4.4% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 70.93 (1801.7) | 67.79 (1721.91) | -3.14 (-79.8) -4.4% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.79 (96.25) | 0 (0) 0% |
| Revolutions per mile (km) | 893.23 (555.03) | 934.63 (580.75) | 41.39 (25.72) 4.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.11 mph (30.76 km/h) |
| 25 mph (40.23 km/h) | 23.89 mph (38.45 km/h) |
| 30 mph (48.28 km/h) | 28.67 mph (46.14 km/h) |
| 35 mph (56.33 km/h) | 33.45 mph (53.83 km/h) |
| 40 mph (64.37 km/h) | 38.23 mph (61.52 km/h) |
| 45 mph (72.42 km/h) | 43.01 mph (69.21 km/h) |
| 50 mph (80.47 km/h) | 47.79 mph (76.9 km/h) |
| 55 mph (88.51 km/h) | 52.56 mph (84.59 km/h) |
| 60 mph (96.56 km/h) | 57.34 mph (92.28 km/h) |
| 65 mph (104.61 km/h) | 62.12 mph (99.97 km/h) |
| 70 mph (112.65 km/h) | 66.9 mph (107.66 km/h) |
| 75 mph (120.7 km/h) | 71.68 mph (115.36 km/h) |
| 80 mph (128.75 km/h) | 76.46 mph (123.05 km/h) |
| 85 mph (136.79 km/h) | 81.24 mph (130.74 km/h) |
| 90 mph (144.84 km/h) | 86.01 mph (138.43 km/h) |
| 95 mph (152.89 km/h) | 90.79 mph (146.12 km/h) |
| 100 mph (160.93 km/h) | 95.57 mph (153.81 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
