Bafang BPM2 G040.500 CST rear code (12) with or without wheel

Bafang BPM2 (also known as G040), rated 500W, 36V

Code (9) winding, which yelds around 328RPM@36V

Available as bare hub, with wheel and spokes, or fitted on the wheel.


Core Data

PositionRear Motor
Wheel Diameter (Inch)26/27.5
ConstructionGear drive
Rated Voltage (DCV)36/43/48
n0 (Rpm)315 ; 240
Rated Power (W)500
nT(Rpm)280 ; 205
Max Torque48 N.m
Efficiency (%)≥ 80
ColorBlack / Silver
Weight (kg)4.2
Noise Grade (dB)< 55
Operating Temperature-20 - 45℃

Mounting Parameters

BrakeDisc Brake
Installation Widths (mm / OLD)135
Max. Housing Diameter (mm)177
Cabling RouteThrough Shaft, Right
Cable Length(mm), Connection Type250 G9.1
Spoke Specification36H*12G

Further Specifications

Speed Detection Signal (Pulses/Cycle)6
Reduction Ratio1:5
Magnet Poles (2P)16

Tests & Certifications

CertificationsROHS / CE
Salt Spary Test Standard(h)96


Dimension A71 mm
Dimension B32 mm
Dimension CΦ 177 mm
Dimension DΦ 164mm
Dimension EΦ 44mm
Dimension FΦ 33mm
Dimension G2–M12 x 1.25–6g
Dimension H6.3mm
Dimension I20.5mm
Dimension J41.5mm
Dimension K15.3
Dimension WL61.2 mm
Dimension WR73.8 mm
Dimension OLD135 mm

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  • Brand: Bafang
  • Product Code: BMP2 G040.500 CST
  • Availability: In Stock
  • £175.00

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Tags: bafang, bmp2, 500w, 36v, 48v, 328rpm, rear, cst