Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-15 | 175/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.58 (573.5) | 21.89 (556) | -0.69 (-17.5) -3.1% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 70.93 (1801.7) | 68.77 (1746.73) | -2.16 (-54.98) -3.1% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.44 (87.5) | -0.34 (-8.75) -9.1% |
| Revolutions per mile (km) | 893.23 (555.03) | 921.35 (572.5) | 28.11 (17.47) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.39 mph (31.2 km/h) |
| 25 mph (40.23 km/h) | 24.24 mph (39.01 km/h) |
| 30 mph (48.28 km/h) | 29.08 mph (46.81 km/h) |
| 35 mph (56.33 km/h) | 33.93 mph (54.61 km/h) |
| 40 mph (64.37 km/h) | 38.78 mph (62.41 km/h) |
| 45 mph (72.42 km/h) | 43.63 mph (70.21 km/h) |
| 50 mph (80.47 km/h) | 48.47 mph (78.01 km/h) |
| 55 mph (88.51 km/h) | 53.32 mph (85.81 km/h) |
| 60 mph (96.56 km/h) | 58.17 mph (93.61 km/h) |
| 65 mph (104.61 km/h) | 63.02 mph (101.42 km/h) |
| 70 mph (112.65 km/h) | 67.86 mph (109.22 km/h) |
| 75 mph (120.7 km/h) | 72.71 mph (117.02 km/h) |
| 80 mph (128.75 km/h) | 77.56 mph (124.82 km/h) |
| 85 mph (136.79 km/h) | 82.41 mph (132.62 km/h) |
| 90 mph (144.84 km/h) | 87.25 mph (140.42 km/h) |
| 95 mph (152.89 km/h) | 92.1 mph (148.22 km/h) |
| 100 mph (160.93 km/h) | 96.95 mph (156.02 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
