Double-Speed Motor Electric Bike Conversion Kit/Bike Electric Kit/Ebike Motor

New XD Double-speed Motor is coming...   The main features of the two -speed motor: a.small volume(max diametre is 132mm); b.big torque,and climbing ability; c.high effeciency(Big torque, low current ); d.when installed the gearshift systerm(freewheel),the speed will be twice as     fast as the original speed.   Specifications of this product:  

Rated Voltage (V)	24/36/48	Cable Location	left
Rated Power (W)	150-350	Spoke Specification	12g/13g
Wheel Size	16''--28''	Hall Sensor	yes
Rated Speed (km/h)	<=27	Speed sense inside	yes
Rated Efficiency (%)	>=82	Surface	Silver /Black painted
Reduction Ratio	1:4.4 and  1:8	Brake Type	Disk Brake
Weight (Kg)	3.3	Salt fog test (h)	24/96
Open Size (mm)	Optional	Noise (db)	< 60
Drive	Front or Rear	Waterproof Grade	IP54

       Front motor :     Rear motor:       characteristics One motor with two reduction ratios,torque at climbing is 2.0 times of torque at cruising. Amazing climbing performance. Three types of riding model, high-speed, low-speed and automatic.changing according to the road conditions. Motor, battery and controller is working under a low electric current status,  all parts will works longer.      This whole motor kit will give you a fantastic riding experience!  So contact me ,Let's talk details!