| Model number | DDF-39 500W | ||
| Position | Front | ||
| Construction | Direct | ||
| Rated Voltage(V) | 36/48 | ||
| Rated Power(W) | 350/500/750 | ||
| Weight(kg) | 6 | ||
| Wheel Diameter(inch) | 20-28 | ||
| Rated Speed(km/h) | 32-45 | ||
| Magnet Poles(2P) | 23 | ||
| Dropout(mm) | 100 | ||
| Brake Type | V/Disk brake | ||
| Operating Temperature(℃) | -20---45 | ||
| Efficiency(%) | ≥83% | ||
| Color | Black/Silver | ||
| Cabling Route | Shaft center right | ||
| Noise Grade(dB) | ≤60 | ||
| IP Grade | IP54 | ||
| Salt Spray Test Standard(h) | 24/96 | ||
| Magnetic Steel(H) | 27 | ||
