RM G070.250/350/500.D

This rear-drive motor, which is compatible with the roller brake, has a rated power of 250W/350W/500W and a maximum torque of 65N.m, providing ideal power for vehicles. This motor is suitable for touring bikes, commuter bikes and mountain bikes. It can be black or sliver.


Core Data

Position Rear Motor
Wheel Diameter (Inch) 20/26/700C/28
Construction Gear drive
Rated Voltage (DCV) 36/43/48
n0 (Rpm) 310;240
Rated Power (W) 250;350;500
nT(Rpm) 280;205
Max Torque 65 N.m
Efficiency (%) ≥ 80
Color Black / Silver
Weight (kg) 4.5
Noise Grade (dB) < 55
Operating Temperature -20 - 45℃

Mounting Parameters

Brake Disc Brake
Installation Widths (mm / OLD) 137
Max. Housing Diameter (mm) 180
Cabling Route Through Shaft , Right
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 73.5mm
Dimension B 35.5mm
Dimension C 180mm
Dimension D 168mm
Dimension E 44mm
Dimension F 33m
Dimension G 2–M12 x 1.25–6g
Dimension H 0
Dimension I 21mm
Dimension J 36mm
Dimension K 14.5mm
Dimension OLD 137 mm
Dimension WL 61.2mm
Dimension WR 75.8mm

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