Frame:26 "Aluminum alloy suspension mountain frame Front fork: suspension hydraulic fork with lock Battery:48V10AH lithium battery Motor:48V500W High speed brushless gear motor Derailleur:SHIMANO 21 Speed Meter:LCD Middle meter with USB Brake:mechanical disc brake Tires: 26"*1.95" tires Rim:Spoke rim Mudplate: PVC Mudplate USB: USB 2.0 Mobile phone charging