20"Aolly folding frame؛ Aluminum alloy suspension fork؛ shimano 7-speed؛ Mechanicaldise brake؛ CHAOYANG 20“*4.0 Tire؛ Battly 21700 cell15AH؛charge time7-8H؛ 48V500W hub-motor؛ Mileage≥50km؛ Max speed≤25km؛ Speed sensor؛ LCD display؛ led light؛ IP65، L1920*W800*H1200؛