... factory price 5.CE,EN15194,RoHS, MSDS, UN38. 24 speed 26" wheel mountain electric bicycle Hot Sale500pcs in StockModel: Z3SpecificationsFoldable designOverall ... (rider weight, rider input and terrain contingent).Optional parts: tool kit, helmet, mudguardNet weight: 20kgPacking weight: 23kgPacking size: 780*400* ... CETIFICATIONSCE,EN15194 EN14764 21 speed 36v 250w li-ion battery 26" ebike kit