20" Mongoose Mode 900 Boys" Freestyle Bike, Matte Black: * Frame: premium chromoly frame * Fork: premium chromoly fork * Gearing (# of speeds): single speed * Brakes: rear aluminum U-brake and lever just like the pros * Wheels: 20" wheels * Tires: high pressure tires * Hub: 9T alloy cassette hub * Axle: oversized 14mm axle * Rims: double wall alloy rims for maximum durability * Handlebars: premium chromoly handlebars * Seat: ultra-light seat and post combo * Pedals: standard pedals * Cranks: tubular chromoly 3-piece cranks * Assembly required * Dimensions: 56"L x 27"W x 38"H