26inch mountain mid drive full suspention 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.shock absorber use KS air alloy or Suntour air magnesium shock absorber. 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.