Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-17 | 175/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.58 (624.3) | 23.89 (606.8) | -0.69 (-17.5) -2.8% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 77.22 (1961.3) | 75.05 (1906.32) | -2.16 (-54.98) -2.8% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.44 (87.5) | -0.34 (-8.75) -9.1% |
| Revolutions per mile (km) | 820.55 (509.87) | 844.22 (524.57) | 23.66 (14.7) 2.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.44 mph (31.28 km/h) |
| 25 mph (40.23 km/h) | 24.3 mph (39.11 km/h) |
| 30 mph (48.28 km/h) | 29.16 mph (46.93 km/h) |
| 35 mph (56.33 km/h) | 34.02 mph (54.75 km/h) |
| 40 mph (64.37 km/h) | 38.88 mph (62.57 km/h) |
| 45 mph (72.42 km/h) | 43.74 mph (70.39 km/h) |
| 50 mph (80.47 km/h) | 48.6 mph (78.21 km/h) |
| 55 mph (88.51 km/h) | 53.46 mph (86.03 km/h) |
| 60 mph (96.56 km/h) | 58.32 mph (93.85 km/h) |
| 65 mph (104.61 km/h) | 63.18 mph (101.68 km/h) |
| 70 mph (112.65 km/h) | 68.04 mph (109.5 km/h) |
| 75 mph (120.7 km/h) | 72.9 mph (117.32 km/h) |
| 80 mph (128.75 km/h) | 77.76 mph (125.14 km/h) |
| 85 mph (136.79 km/h) | 82.62 mph (132.96 km/h) |
| 90 mph (144.84 km/h) | 87.48 mph (140.78 km/h) |
| 95 mph (152.89 km/h) | 92.34 mph (148.6 km/h) |
| 100 mph (160.93 km/h) | 97.2 mph (156.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2148 | 2496 | 2688 | 2807 | 2935 | 3026 | 3127 | 3245 | 3410 | 3575 | 3757 | 3904 | 4169 | 4461 | 4690 | 4836 | 4918 | 5220 | 5641 | 6555 |
Better Fuel Economy Factory Ratios Increased Power
