Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-16 | 175/30-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.58 (598.9) | 20.13 (511.4) | -3.44 (-87.5) -14.6% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 74.07 (1881.5) | 63.25 (1606.61) | -10.82 (-274.89) -14.6% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 2.07 (52.5) | -1.72 (-43.75) -45.5% |
| Revolutions per mile (km) | 855.35 (531.49) | 1001.7 (622.43) | 146.35 (90.94) 17.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.08 mph (27.48 km/h) |
| 25 mph (40.23 km/h) | 21.35 mph (34.36 km/h) |
| 30 mph (48.28 km/h) | 25.62 mph (41.23 km/h) |
| 35 mph (56.33 km/h) | 29.89 mph (48.1 km/h) |
| 40 mph (64.37 km/h) | 34.16 mph (54.97 km/h) |
| 45 mph (72.42 km/h) | 38.43 mph (61.84 km/h) |
| 50 mph (80.47 km/h) | 42.69 mph (68.71 km/h) |
| 55 mph (88.51 km/h) | 46.96 mph (75.58 km/h) |
| 60 mph (96.56 km/h) | 51.23 mph (82.45 km/h) |
| 65 mph (104.61 km/h) | 55.5 mph (89.32 km/h) |
| 70 mph (112.65 km/h) | 59.77 mph (96.2 km/h) |
| 75 mph (120.7 km/h) | 64.04 mph (103.07 km/h) |
| 80 mph (128.75 km/h) | 68.31 mph (109.94 km/h) |
| 85 mph (136.79 km/h) | 72.58 mph (116.81 km/h) |
| 90 mph (144.84 km/h) | 76.85 mph (123.68 km/h) |
| 95 mph (152.89 km/h) | 81.12 mph (130.55 km/h) |
| 100 mph (160.93 km/h) | 85.39 mph (137.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
