double disc brake bicycle city car light commuter male and female student retro lady car variable speed bicycle

material carbon steel car item no. md-356 frame structure whole car processing customization yes brand dynamic folding or not no propulsion mode chain model 22-inch load 160kg brake system double disc brake frame type hard frame pedal type common pedal brake type front and rear mechanical disc brake configuration level mini type color white single-speed brake model pink single-speed brake model green single-speed brake model white variable speed disc brake model pink variable speed disc brake mo