Brushless Middle Drive Motor Kit 50KM Fast Powerful for Mountain Bike

DESCRIPTION:

This Kit Can COMPLETE WITH BAFANG Middle Motor Kit. And Cheaper than Bafang Motor Kit.
The speed can reach 40-50KM.

Features:1:23 super high speed ratio; 
95MM super large rotor; large torque; 
Fine workmanship: aviation aluminum profile, surface anodizing; 
Simple installation; Easy to use, Stable maintenance-free; 
Climbing ability bigger than 40°

Vehical Type: 12-26 inch, BB( Five-way): 68-73mm universal use

Features:

1:23 super high speed ratio; 
95MM super large rotor; large torque; 
Fine workmanship: aviation aluminum profile, surface anodizing; 
Simple installation; Easy to use, Stable maintenance-free; 

Motor Voltage&Power:

250W 36V ;

350W  36V/48V;

500W  48V;

800W  48V/60V;

1000W  48V/60V;

Some Main parameter of Motor:

48V 500W:

Rated Volt: 48V; Rated Power:500W; Torque: 138NM;

Speed Ratio: 1:23

48V 800W:

Rated Volt: 48V; Rated Power:800W; Torque: 220-230NM;

Speed Ratio: 1:23,Rated Speed:3300R/MIN,Rated Current: 20A

The Motor Size please find at the column of MOTOR SPECS