1.lithium battery absolutely environmental protection 2.aluminum alloy lighter 3.light and handy 4.High configuration safe Model No.:TDE12001ZOperative Mode:Pedal assitantCerfiticate: Colour: Frame Material:AL6061,26"*460mm,LongyeahMotor:Mid-drive,36V/240WFront fork:SF12-XCT-V4-DS-PM26"/26"*Φ28.6*Φ25.4*245*100W,SantourBattery:36V/9Ah,cell of PanasonicBrake:F/R:hydraulic disc brakes,AURIGA COMP, ...