26inch mountain mid drive fat tire ebike is strong with hidden battery style.all parts is good quality brand  parts .  1. frame use 26*4.0 kenda with 6061 Aluminum alloy frame  .   2. motor  use 36v250w / 48v500 /48v750w/ 48v1000w bafang mid drive motor .   3. battery  use 36v or 48v10.4ah /14.5/16ah panasonic or samsung  lithium battery  .  4, brake system  use tektro mechanical disc brake or tektro hydraulic disc brake.   5, front fork use MOZO hydraulic alloy suspention adjustable front fork or RST air magnesium suspention outlock front fork.        6.display use bafang C10 or C18 color LCD display .  7.shimano altus 7 speed or Alivio 9 speed or deore 10speed.  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.