... Product Description electric bicycleSpecification20' electrical bicycle6061 aluminium alloy frame36v lithium cell,25-42km/h ... disc brakesZheng Xin, 20*1.75tiresWheel Top, aluminium cotter,chain wheelHong Guang, foldable pedalKMC,chainaluminium foldable handle,seat ... pillar,rim,stemAssess, aluminium hubsY.S Paint ,flame ...