New 54cm Aluminum Road Bike Racing Bicycle 21 Speed Shimano - Black Color

Color: Black
Size: 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: Black
Size: Medium (54cm), Recommended height: 5'4"-6'0"
Frame: 700Cx21", Alloy 6061, Top Tube / Seat Tube / Down Tube: 31.8x31.8x42mm
Fork: 700CC, Steel, Comfortable Bike Fork
Handle Bar: 22.2mm, W: 420mm
Handle Stem: Ext:80, 22.2x180
Chain Wheel: 1/2"x3/32"x28x38x48Tx170mm
Front 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 110L
Brake: AS-2.4D, Alloy Caliper Brake, Adjustable
Brake Levers: RA3.2A, Alloy
Brake Cable: F: 430x700mm, R: 520x220x 1250mm
Rim: HS-14, Alloy, 14Gx36H, Size: 700Cx1.5 A/V, Double Wall Rim
Front Hub: AE-241F, Alloy, 14Gx36H"3/8"x100x140mm, Loose Ball
Rear Hub: AE-241R, Alloy, 14Gx36H"3/8"x126x165mm, Loose Ball
Tire: IA-2304, Rubbber, 700Cx25C
Saddle: PVC fake leather
Seat Post: JB-SP-300, Alloy, 27.2x250x1.4T
Seat Post Clamp: Alloy 31.8mm
Pedals: YH-44X, Alloy 9/16" with ball
Spoke: 13G Lengh: F/295, R/295/292, with steel cap.
Kickstand: Not included
Weight: 25 lbs