... ultrathin folding bicycleSpecification:14' ultra thin design6061 aluminium alloy foldable frame,handle,seat pillarfoldable guide stem Zheng Xin ... , 14*1.5 tiresHong Guang, foldable pedalSamson, aluminium rimVelo, saddleWheel Top, aluminium cotter,chain wheelTrireed, transparent grip,mudboardJoy ... , ultrathin aluminium bearing hubArtek, V brakesY.S Paint ...