RM G370.250.DC

This rear-drive motor, which has an inner rotor, is compatible with a disc and has a rated power of 250W. Because of its inner rotor design and a large reduction ratio (1:12.5), the motor's power can be effectively released. Small in size, light in weight, high in efficiency, and smooth & quiet in running, this motor is suitable for city bikes. This motor can be black.


Core Data

Position Rear Motor
Wheel Diameter (Inch) 26/700C/28
Construction Gear drive
Rated Voltage (DCV) 36/43
n0 (Rpm) 240;265
Rated Power (W) 250
nT(Rpm) 211;235
Max Torque 42 N.m
Efficiency (%) ≥ 80
Color Black
Weight (kg) 2.0
Noise Grade (dB) < 55
Operating Temperature -20 - 45℃

Mounting Parameters

Brake Disc Brake
Installation Widths (mm / OLD) 145
Max. Housing Diameter (mm) 105
Cabling Route Shaft Side, Left
Cable Length(mm), Connection Type 250 G9.1
Spoke Specification 36H*12G

Tests & Certifications

IP IP 65
Certifications ROHS / CE
Salt Spray Test Standard(h) 96


Dimension A 88.25 mm
Dimension B 44 mm
Dimension C 105 mm
Dimension D 93 mm
Dimension E 44 mm
Dimension F 33 mm
Dimension G 2-3 / 8-26UNF-2A
Dimension H 7.25 mm
Dimension I 23.5 mm
Dimension J 39.5 mm
Dimension K 15.25 mm
Dimension OLD 145 mm
Dimension WL 65.25 mm
Dimension WR 79.75 mm

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