From the driveway to the bike park, stp 20 helps young riders make the transition from wobbly laps around the block to having fun on trails and off-road terrain. FEATURES: Dirt or street: Lightweight, strong and durable aluminum frameset is designed to go from street riding to bike parks or trails. Kid-friendly design: Frame geometry is designed specifically for young riders with 20-inch wheels, a low standover height and taller front end for a stable ride quality. Maximum control: Powerful disc brakes and suspension fork (on select models) with a lockout option puts maximum control in the rider’s hands. SPECS: Frame ALUXX-grade aluminum Fork alloy, rigid Gears 7 Crankset/Chainring alloy forged, 30t, 127mm Cassette Shimano CS-HG200, 12x32 Rear Derailleur Shimano Tourney Shifters microSHIFT DS45-7 Brakes mechanical disc [F]160mm, [R]160mm rotors Handlebar Giant Sport, alloy, 31.8mm Stem forged alloy, 0-degree Seatpost alloy, 27.2x250mm Saddle Giant Jr. Sport Hubs Giant Disc, 28h, QR, alloy, disc Rims Giant 20", alloy, 28mm inner width Tires Kenda Karma, 20x2.6" Extras N/A