New 54cm Aluminum Road Bike Racing Bicycle 21 Speed Shimano - Black Color
Color: BlackSize: Medium (54cm)Strong and Lightweight 6061 Aluminum Frame.Shimano 21 speed A050 shifter and derailleur.Adjustable handlebar and seat post for comfortable riding styles.Includes free water bottle and bottle holder.Recommended height: 5'4"-6'0"Assembly required, easy to assemble.Packing: SKD 85% factory assembled.SPECIFICATIONS:Color: BlackSize: Medium (54cm), Recommended height: 5'4"-6'0"Frame: 700Cx21", Alloy 6061, Top Tube / Seat Tube / Down Tube: 31.8x31.8x42mmFork: 700CC, Steel, Comfortable Bike ForkHandle Bar: 22.2mm, W: 420mmHandle Stem: Ext:80, 22.2x180Chain Wheel: 1/2"x3/32"x28x38x48Tx170mmFront Derailleur: TZ31, 31.8mm Pull Down (Shimano)Rear Derailleur: A050 (Shimano)Derailleur Shifter : A050 SIS Handlebar Mounted, Non-Index (Shimano)Freewheel: MF-TZ07, 7 speed 14-28T (Shimano)Chain: 1/2"x 3/32"x 110LBrake: AS-2.4D, Alloy Caliper Brake, AdjustableBrake Levers: RA3.2A, AlloyBrake Cable: F: 430x700mm, R: 520x220x 1250mmRim: HS-14, Alloy, 14Gx36H, Size: 700Cx1.5 A/V, Double Wall RimFront Hub: AE-241F, Alloy, 14Gx36H"3/8"x100x140mm, Loose BallRear Hub: AE-241R, Alloy, 14Gx36H"3/8"x126x165mm, Loose BallTire: IA-2304, Rubbber, 700Cx25CSaddle: PVC fake leatherSeat Post: JB-SP-300, Alloy, 27.2x250x1.4TSeat Post Clamp: Alloy 31.8mmPedals: YH-44X, Alloy 9/16" with ballSpoke: 13G Lengh: F/295, R/295/292, with steel cap.Kickstand: Not includedWeight: 25 lbs