RM G310.250.DC

This rear-drive motor, which has a rated power of 250W, a reduction ratio of 1: 11 and a maximum torque of 30 N.m, provides ideal power for vehicles. Strong and efficient, this motor greatly enhances riding comfort and is suitable for touring bikes, commuter bikes and mountain bikes. It can be black, silver.


Core Data

Position Rear Motor
Wheel Diameter (Inch) 26/27.5/28
Construction Gear drive
Rated Voltage (DCV) 36/43
n0 (Rpm) 240 /275
Rated Power (W) 250
nT(Rpm) 205/235
Max Torque 30 N.m
Efficiency (%) ≥ 80
Color Black
Weight (kg) ≤ 3
Noise Grade (dB) < 50
Operating Temperature -20 - 45℃

Mounting Parameters

Brake Disc Brake
Installation Widths (mm / OLD) 138
Max. Housing Diameter (mm) 135
Cabling Route Shaft Side, Left
Cable Length(mm), Connection Type 250 G9.1
Gearshift Freewheel(6S/7S/8S/9S)
Spoke Specification 36H*13G

Further Specifications

Speed Detection Signal (Pulses/Cycle) 6
Reduction Ratio 1:11
Magnet Poles (2P) 16

Tests & Certifications

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


Dimension A 82.25 mm
Dimension B 35 mm
Dimension C Φ135mm
Dimension D Φ123mm
Dimension E Φ44mm
Dimension F Φ33mm
Dimension G 2–3/8-26UNF-M12
Dimension H 7mm
Dimension I 24.7mm
Dimension J 39.5mm
Dimension K 15.25mm
Dimension WL 62mm
Dimension WR 76 mm
Dimension OLD 138 mm

Back to Motor

Component added to enquiry

Component already added to enquiry

Error: Component could not be added to enquiry