Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-15 | 165/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.15 (562.5) | 21.5 (546) | -0.65 (-16.5) -2.9% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 69.57 (1767.15) | 67.53 (1715.31) | -2.04 (-51.84) -2.9% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 3.25 (82.5) | -0.32 (-8.25) -9.1% |
| Revolutions per mile (km) | 910.7 (565.88) | 938.22 (582.98) | 27.52 (17.1) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.24 km/h) |
| 25 mph (40.23 km/h) | 24.27 mph (39.05 km/h) |
| 30 mph (48.28 km/h) | 29.12 mph (46.86 km/h) |
| 35 mph (56.33 km/h) | 33.97 mph (54.67 km/h) |
| 40 mph (64.37 km/h) | 38.83 mph (62.49 km/h) |
| 45 mph (72.42 km/h) | 43.68 mph (70.3 km/h) |
| 50 mph (80.47 km/h) | 48.53 mph (78.11 km/h) |
| 55 mph (88.51 km/h) | 53.39 mph (85.92 km/h) |
| 60 mph (96.56 km/h) | 58.24 mph (93.73 km/h) |
| 65 mph (104.61 km/h) | 63.09 mph (101.54 km/h) |
| 70 mph (112.65 km/h) | 67.95 mph (109.35 km/h) |
| 75 mph (120.7 km/h) | 72.8 mph (117.16 km/h) |
| 80 mph (128.75 km/h) | 77.65 mph (124.97 km/h) |
| 85 mph (136.79 km/h) | 82.51 mph (132.78 km/h) |
| 90 mph (144.84 km/h) | 87.36 mph (140.59 km/h) |
| 95 mph (152.89 km/h) | 92.21 mph (148.4 km/h) |
| 100 mph (160.93 km/h) | 97.07 mph (156.21 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
