folding electric bicycle, folding bicycle,folding electric bikewith EN-15194. folding electric bike, electric bike smart,folding electric bicycle with EN-15194 Wattage:251- ... Li-ionseat postfolding seat postAll battery with electric protection circuitRear BrakeDrum brake(V-brake available) ... 32Km/h(USA)ChainRust resistant chainRange 50Km full electric (36V/10Ah)Chain wheelSteel 40T,alloy aluminum ...