M63

Frame :

steel frame inner painting

Fork :

shock absorbing fork 31.8 leg thickness

Rim Aluminum alloy：

rim double wall 36H

Handlebar  ：

High carbon steel 31.8 600mm

Front Brake :

Disc brakes YK-5 Aluminum alloy 6 screws fixed  

Rear Brake：

Disc brakes YK-5 Aluminum alloy 6 screws fixed

Bottom  bracket parts：

High carbon steel Zhongya brand

Chain wheel：

High carbon steel 24T*34T*42T

Gear shifter：

shimano TX30 gear shifter

Front derailleur :

shimano brand

Rear derailleur:

shimano brand

Free wheel ：

High carbon steel location

Chain：

Kmc 108L

Quick release ：

Aluminum alloy

Gear system：

21 speed local brand

Motor :

48V 500W 36 Holes 电机 48V  500W 36HOLES

Controller ：

500W 25KM/H