✅ High-speed Brushless DC motor
High efficiency, stable operation, no resistance, small size, light weight
✅ High-speed brushless permanent magnet motor
High efficiency, smooth, long working life, planetary gear and clutch
No resistance, it's easy to ride even with battery drained out.
✅ High-strength aluminum alloy housing
Spraying surface finishing, scratching resistance and more friendly to environment
Our advantages
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High-quality materials |
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Efficient |
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Long life |
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Light weight |
IP65 Waterproof Protection
IP65-rated for reliable water and dust resistance
Fits most of the wheel sizes
Compatible wheel sizes: 16 inch, 20 inch, 24 inch, 26 inch, 27.5 inch, 29 inch, 700C
20 strong magnets
Good consistency, stable magnetic field and high temperature resistance
Automatic machine winding
Precision machine winding ensures consistent coil quality and stable output
Silicon steel sheets
High-grade silicon steel laminations minimize eddy current loss and improve motor efficiency
PA66 reduction gear
Cold resistance, high temperature resistance, high toughness, low friction coefficient
High-strength motor shaft
High quality waterproof cable
9 pins cable: 3 phase wires, 5 Hall wires, and 1 signal wire
Dimensions
Products Model
| Model | MRO250W / MRO350W |
Installation Parameters
| Parameter | Value |
|---|---|
| Brake Type | V brake / Disc brake |
| Open size (mm) | 135~175 |
| Hub diameter (mm) | 157~160 |
| Cable Location | Shaft side, Right |
| Outlet cable length (mm), cable type | 238, G9.5 |
| Spoke specifications | 36H13G |
| Hub Type | Freewheel / Cassette |
| Speeds | Freewheel 6~9S / Cassette 7~10S |
Main Specifications
| Parameter | Value |
|---|---|
| Position | Rear motor |
| Compatible rim size | 16"~29" |
| Structure | Gear drive |
| Rated voltage (DCV) | 36V / 48V |
| No-load speed (Rpm) | 280~400 |
| Rated power (W) | 250 / 350 |
| Load speed (Rpm) | 250~350 |
| Maximum torque (N.M) | 30~85 |
| Efficiency (%) | >80% |
| Colour | Black / Silver |
| Max speed | 32~55 |
| Weight (kg) | 3.18 / 4.1 |
| Noise Grade (dB) | <50 |
| Operating Temperature | -20~45°C |
Technical Parameters
| Parameter | Value |
|---|---|
| Speed detection signal (Pulse/Cycle) | 6 |
| Reduction ratio | 1:5 |
| Magnet poles (2P) | 20 |
Testing and Certification
| Parameter | Value |
|---|---|
| Waterproof Grade | IP65 |
| Certification | CE / CCC / CQC |
| Salt Spray test (h) | 48 |
