27.5 MTB full suspention rear drive electric bicycle is strong with hidden battery style.all parts is good quality brand parts . 1. frame use 27.5*2.3 MAXXIS with 6061 Aluminum alloy frame . 2. motor use 36v250w /48V350w/ 48v500w BAFANG motor power . 3. battery use 36v or 48v10.4 /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 Suntour or RST oil alloy suspention adjustable front fork. 6. display use King-meter LCD or LED display /APT brand LCD display . 7.wellgo alloy pedal . 8. velo leather grip and saddle. 9. promax seat post and handlebar . 10. prowheel crank. 11.front &rear LED light. 12. KMC chain.. 13 shimano altus 7 speed or Alivio 9 speed or deore10speed. 14. shock absorber : KS air alloy or Suntour air magnesium shock absorber
