24V or 36V 250W or 400W bafang CST(Cassette freewheel)

Product Overview

Description

 

partname:	CST(Cassette freewheel)
Rated Voltage (V)	24/36
Rated Power (KW)	250~500
Max Diameter (mm)	180
Max Speed (rpm)	285~300
Rated Efficiency (%)	≥78%
Pole	28
Reduction Ratio	1:5
Weight (kg)	≤4.5
Open size (mm)	135
Drive and freewheel type	8s,9s
Spoke Specification	12G/13G
Cable location	Shaft center, righ
Hall sensor	Optional
Integrate speed sensor	Optional
Connector	Optional
Brake type	Disc (>160)
Surface	Silver/Sliver painted
Noise (dB)	<55
Salt fog test (h)	24/96
Water proof Grade	IP54
Certification	CE ROHS

 

1, This kits can be installed on standard normal bike frame easily, no need to change the frame.The advantage of this kits

 

2, High starting torque,  Max torque≥80N, good performance on climbing.

3, Double clutch is used on drive unit, more safety.

4, High efficiency, low consumption, long travel distance.

 

About HJ

We are professional do e-bike kits business for many years for the customers all over the world, and have met so many troubles, with these troubles, we have much experience on e-bike kits today.

Our e-bike kits are easy to install and allow you to convert your standard bicycle into an fun and eco-friendly e-bike. Since every model is different and components will vary, it's your responsibility to determine the best way to install an electric bike kit on your bike. Although most of the steps are similar from install to install, we have instructions can help the customers to convert their bicycle.