E-JC70 Specifications 27 speed 20 speed Bike Sizing & Fit Guide 27 speed ItemDescription FrameAluminum 7005 SeatFRP w/mesh cushion . headrest Handle barAluminum handle bar /steering Cycling computerACER EDS-C1 ControllerACER MCS-350-GL ShiftersMicroshift bar end shifter A9 LeversParking lever Front DerailleurMicroshift R353 Rear DerailleurShimano Acera 9S CranksetFSA : 50/39/30t CassetteSunrace M96 11-32t Front wheelJalco X320 w / mono hub 28H Rear wheel (motor)Jalco X320 w / ACER 36H Tires20″ x1.5 / 700c x 35c BrakesTektro : MD-C510 flat mount BatteryACER MBP-BR36M02 36V/ 14Ah ChargerACER 2A charger PedalClipless FendersBlack front / rear Rear rackBlack (with battery holder) MSRPUS$ 3,380 20 speed ItemDescription FrameAluminum 7005 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 Front wheelJalco X320 w / mono hub 28H Rear wheel (Motor)Jalco X320 w /ACER 36H 350W Tires20″ x1.5 / 700c x 35c BrakesRever: CX02 flat mount BatteryACER MBP-BR36M02 36V/ 14Ah ChargerACER 2A charger PedalClipless FendersBlack front / rear Rear rackACER (with battery holder) MSRPUS$3,525 Bike Sizing & Fit Guide Bottom Bracket HeightSeat HeightSeat angle-from HorizontalTop of seatTop of Headrest 42.5cm26cm34-40 degrees83cm100cm Wheel baseAverage weight/kgRider’s weight limitedX-seam/inch 105cm18.4kgs120kgsM : 36″~39.5″ L : 39.5″~48″ Wheel Size 20″ / 700c For more details please check: http://powertrain.tw/Specification.html*The components may change due to the availability.