Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-15 | 175/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 22.58 (573.5) | 0.69 (17.5) 3.1% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 68.77 (1746.73) | 70.93 (1801.7) | 2.16 (54.98) 3.1% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 3.79 (96.25) | 0.34 (8.75) 10% |
| Revolutions per mile (km) | 921.35 (572.5) | 893.23 (555.03) | -28.11 (-17.47) -3.1% |
175/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.79 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.94 mph (49.8 km/h) |
| 35 mph (56.33 km/h) | 36.1 mph (58.1 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.4 km/h) |
| 45 mph (72.42 km/h) | 46.42 mph (74.7 km/h) |
| 50 mph (80.47 km/h) | 51.57 mph (83 km/h) |
| 55 mph (88.51 km/h) | 56.73 mph (91.3 km/h) |
| 60 mph (96.56 km/h) | 61.89 mph (99.6 km/h) |
| 65 mph (104.61 km/h) | 67.05 mph (107.9 km/h) |
| 70 mph (112.65 km/h) | 72.2 mph (116.2 km/h) |
| 75 mph (120.7 km/h) | 77.36 mph (124.5 km/h) |
| 80 mph (128.75 km/h) | 82.52 mph (132.8 km/h) |
| 85 mph (136.79 km/h) | 87.68 mph (141.1 km/h) |
| 90 mph (144.84 km/h) | 92.83 mph (149.4 km/h) |
| 95 mph (152.89 km/h) | 97.99 mph (157.7 km/h) |
| 100 mph (160.93 km/h) | 103.15 mph (166 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2273 | 2641 | 2844 | 2970 | 3105 | 3202 | 3308 | 3434 | 3608 | 3782 | 3976 | 4130 | 4411 | 4720 | 4962 | 5117 | 5204 | 5523 | 5968 | 6935 |
Better Fuel Economy Factory Ratios Increased Power
