Model: 20F012
Speed: 21sp
Frame: Steel folding frame
Stem: Alloy folding stem
Rim:Alloy double wall rim 36H
Gear system: SHIMANO  ST-EF51 /RD-TZ50 GEAR
Tyre: 20*1.35(30TPI) color tire
Brake: Alloy disk brake
Other: Alloy handlebar; KMC chain;; Folding pedal;