Rear Hub Motor — 36V / 250W High-efficiency, low-noise rear hub motor for city & trekking e-bikes. Supports 20–29″ wheelsets, V-brake or disc-brake, and delivers up to 45 N·m max torque...
High-efficiency, low-noise rear hub motor for city & trekking e-bikes. Supports 20–29″ wheelsets, V-brake or disc-brake, and delivers up to 45 N·m max torque with ≥80% efficiency. IPX5 water protection for reliable all-weather commuting.
Rated voltage: DC 36V
Rated power: 250W; no-load speed: 300 rpm
Wheel size support: 20″–29″
Max torque: 45 N·m; efficiency: ≥80%
Noise grade: < 55 dB
Brake type: V-brake / Disc-brake
Spoke spec: 36H × 13G
Weight: 2.8 kg; color: Black
Ingress protection: IPX5
Certifications: RoHS / CE
Technical Specifications
Model
RH30SE (Rear wheel, eCity/eTour)
Rated Voltage
DC 36V
Rated Power
250W
No-load Speed
300 rpm
Max Torque
45 N·m
Efficiency
≥ 80%
Noise
< 55 dB
Wheel Size
20″–29″
Brake Type
V-brake / Disc-brake
Spoke Spec
36H × 13G
Weight / Color
2.8 kg / Black
Operating Temp
–20 to 45 °C
OLD (Installation Width)
137 mm
Max Housing Ø
141 mm
Cabling Route / Length
Axle exit, left side / per order
Ingress Protection
IPX5
Certifications
RoHS / CE
Dimensions & Fit
Installation width (OLD): 137 mm · Max housing diameter: 141 mm. Verify dropout spacing, brake interface (V-brake/disc), and spoke spec before build.
Installation & Use Notes
Use with a matching 36V controller & display; connector spec per order.
Left-side axle cable routing—avoid sharp bends and strain.
Do not wash with high-pressure water; IPX5 is rain-safe only.
Operate within –20 to 45 °C; store in a dry, non-corrosive environment.
