Lady mountain full hidden battery electric bike is very hot sales with hidden battery style.all parts is good quality brand  parts .  1. frame use 26*2.0 MAXXIS with 6061 Aluminum alloy frame  .   2. motor  use 36v250w / 36V350W bafang motor power .   3. battery  use 36v10.4ah LG or samsung  lithium battery  .    4, brake system  use tektro mechanical disc brake or tektro hydraulic disc brake.  5, front fork use Suntour or RST  hydraulic alloy suspention adjustable front fork             6.display  use King-meter just one LCD or LED display /APT brand LCD display .  7. alloy rear rack with LED light .  8. wellgo alloy pedal .   9. velo  leather grip and saddle. 10.promax  seat post and handlebar .    11. prowheel alloy crank. 12.  front &rear LED light  . 13. KMC chain.   14. shimano altus 7 speed or Alivio 9 speed or deore 10speed.