off-road folding racing mountain bike factory direct 16-inch 20-inch folding bicycle male and female ultra-light portable shock-absorb

material carbon steel car number 20 frame structure folding car processing customization no brand yongleda folding yes propulsion mode chain model 20 inches load 120kg pedal type ordinary pedal brake system rear brake frame type tailless frame brake type rear brake configuration level standard color white black light blue pink size 16-inch ordinary bare car 16-inch ordinary model with gift bag 20-inch ordinary model with gift bag 20-inch ordinary model with gift bag 16-inch shock-absorbing model