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E-CITY
CZJB-90SZ e-bike hub motor
CZJB’s popular standardized 250w-350w disc brake variable speed motor has a high cost-effectiveness and is widely used by well-known domestic e-bike manufacturers. It complies with national standards. As one of the drafting units of the “Technical Specifications for Automotive Wheel Hub Motor Systems”, the influence of CZJB Motor cannot be underestimated.
Rated Power: 250w/350w
Max Torque: 42Nm
Reduction Ratio: 1:5.2
Specifications
Motor Drawing
Specifications
| Position | Rear |
| Construction | Gear |
| Rated Voltage（V） | 36/48 |
| Rated Power（W） | 250/350 |
| Weight（Kg） | 3 |
| Reduction Ratio | 1：5.2 |
| Max Torque（N.m） | 42 |
| Wheel Diameter（Inch） | 16-28 |
| Rated Speed（km/h） | 25 |
| Spoke Specification | 36H*12G/13G |
| Dropout(mm) | 138 |
| Brake Type | V/Disc brake |
| Operating Temperature（℃） | -20-45 |
| Efficiency（%） | ≥82 |
| Color | Black/silver |
| Cable Location | Shaft side left |
| Noise Grade（dB） | ≤55db |
| IP Grade | IP65 |
| Drive and Freewheel | 6/7S |
Motor Drawing
