Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/50-15 | 165/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546) | 20.85 (529.5) | -0.65 (-16.5) -3% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 67.53 (1715.31) | 65.49 (1663.47) | -2.04 (-51.84) -3% |
| Sidewall Height inches (mm) | 3.25 (82.5) | 2.92 (74.25) | -0.32 (-8.25) -10% |
| Revolutions per mile (km) | 938.22 (582.98) | 967.46 (601.15) | 29.24 (18.17) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.21 km/h) |
| 25 mph (40.23 km/h) | 24.24 mph (39.02 km/h) |
| 30 mph (48.28 km/h) | 29.09 mph (46.82 km/h) |
| 35 mph (56.33 km/h) | 33.94 mph (54.62 km/h) |
| 40 mph (64.37 km/h) | 38.79 mph (62.43 km/h) |
| 45 mph (72.42 km/h) | 43.64 mph (70.23 km/h) |
| 50 mph (80.47 km/h) | 48.49 mph (78.04 km/h) |
| 55 mph (88.51 km/h) | 53.34 mph (85.84 km/h) |
| 60 mph (96.56 km/h) | 58.19 mph (93.64 km/h) |
| 65 mph (104.61 km/h) | 63.04 mph (101.45 km/h) |
| 70 mph (112.65 km/h) | 67.88 mph (109.25 km/h) |
| 75 mph (120.7 km/h) | 72.73 mph (117.05 km/h) |
| 80 mph (128.75 km/h) | 77.58 mph (124.86 km/h) |
| 85 mph (136.79 km/h) | 82.43 mph (132.66 km/h) |
| 90 mph (144.84 km/h) | 87.28 mph (140.46 km/h) |
| 95 mph (152.89 km/h) | 92.13 mph (148.27 km/h) |
| 100 mph (160.93 km/h) | 96.98 mph (156.07 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
