Frame MTB 20R 0.0, alloy Fork 20R: Rigid Brakes Promax V-Brake Brake lever 20R: Kid Rear derailleur Shimano Tourney Shifter - Crankset 20R: Prowheel, adjustable pedal position Gear ratio 20": front: 32, rear: 14-28 Handlebar 20R: flatbar, 500 mm Stem Alloy, ahead Saddle 20": Kid saddle Seatpost Patent, alloy Hubs front/rear: Alloy, QR Rims Concept, with eyelets Tires 20": Kenda K-879, 50-406