Description For the BMX rider who’s looking to improve their ability. Frame: Hi-Ten steel, 1 1/8 in headtube Fork: Mongoose, 20″, Hi-Ten steel, 100 mm, nutted Bottom Bracket: American loose ball, 68 mm Cassette: 1-speed, 9T cassette driver Pedals: Mongoose, plastic Brake Levers: Mongoose Front Brake: Power, U-brake, aluminum Rear Brake: Power, U-brake, aluminum Grips: Mongoose Handlebar: Mongoose, Hi-Ten steel, 28.25 in width, 8.25 in rise, 22.2 mm clamp Stem: Mongoose, aluminum, threadless, 45 mm Headset: Threadless, 1-1/8″ external, retainer bearing Seatpost: Steel, 250 mm, 25.4 mm Saddle: Mongoose, steel rails Hubs: Front Hub: Steel, ball bearing, 100 mm bolt-on, 36H Rear Hub: Aluminum, sealed-bearing cassette, 36H Rims: Mongoose, aluminum, single wall, 25 mm ID, 36H, non tubeless Spokes: 14G, steel Tyres: Mongoose, 20 in x 2.35 in, wire bead Crankset: 1-piece, forged steel, 25T Suits riders around 7 years old..