E-JC26X Choose Your Color Specifications 27 Speed 20 Speed Bike Sizing & Fit Guide 27 Speed ItemDescription Main FrameAluminum 6061 Rear forkCr-Mo SeatFRP w/mesh cushion . headrest Handle barAluminum handle bar / steering Cycling computerACER EDS-C1 ControllerACER MCS-350GL ShiftersMicroshift bar end shifter 9s LeversParking Lever Front DerailleurMicroshift R353 Rear DerailleurShimano Acera 9S CranksetFSA : 50/39/30t CassetteSunrace M96 11-32t WheelsetF/mono 32H R/ACER 36H 350W Tires20″ x 1.5 / 700C BrakesTektro : MD-C510 flat mount BatteryACER MBP-BR36M02 36V/ 14Ah Battery HolderACER ChargerACER 2A charger PedalClipless FendersBlack front / rear Rear rack Black MSRPUS$3,580 20 Speed ItemDescription Main FrameAluminum 6061 Rear forkCr-Mo SeatFRP w/mesh cushion . headrest Handle barAluminum handle bar / steering Cycling computerACER EDS-C1 ControllerACER MCS-350-GL ShiftersMicroshift bar end shifter 10S LeversParking Lever Front DerailleurMicroshift FD-M612B Rear DerailleurMicroshift RD-M61L CranksetFSA 46/30t CassetteMicroshift CS-H100 11-36T Wheelset F/mono 32H R/ACER 36H 350W (motor) Tires20″ x 1.5 / 700C BrakesRever: CX02 flat mount BatteryACER MBP-BR36M02 36V / 14Ah Battery HolderACER ChargerACER 2A charger PedalClipless FendersBlack front / rear Rear rack Black MSRPUS$3,780 Bike Sizing & Fit Guide Bottom Bracket HeightSeat HeightSeat angle-from HorizontalTop of seatTop of Headrest 42.5cm23cm36-39 degrees86cm103cm Wheel baseAverage weight/kgRider’s weight limitedX-seam/inch 112cm18.2kgs120kgsM : 33″~40″ L : 39.5″ ~ 48″ For more details please check:http://powertrain.tw/Specification.html*The components may change due to the availability.