bicycle mountain bike 20-inch 22-inch 7-speed 21-speed student bike childrens bicycle double disc brake commuter

suggested retail price & yen 550.00 material carbon steel car item no.-2 frame structure whole car processing customization yes brand all moves fold no propulsion mode chain model 20-inch 22-inch load 75kg brake system double disc brake frame type hard frame front fork type spring fork (low-end no damping) configuration level standard pedal type ordinary pedal brake type front and rear mechanical disc brakes color white red black yellow size 20-inch 7-speed 22-inch 7-speed 20-inch 21-speed 22-in