The Mongoose Fraction 2011 Features are: Frame: Fully updated design 20.75 inch Seamless Cromo Fork: Tapered Full Cromo Headset: 1-18 inch FSA Integrated (Campy fit) Handlebars: Mongoose 10&2 bars; Cromo 8.25 inch Stem: Mongoose Capless Ahead 50mm Cranks: 3pc Seamless Cromo 175mm 25T Bottom Bracket: Midsize Sealed Premium Bearing 48 spline Freewheel: 9T Cassette One Piece Driver Chain: Half Link Front Brake: Tektro FX720 alloy U-brake Rear Brake: Tektro FX720 alloy U-brake Brake Levers: Odyssey Monolever (Med) hinged Rims: SUN Estate 32H front SUN Estate 36H rear Front Hub: 32H AFFIX Tiny 38 Cromo axle Sealed bearing Rear Hub: Low Flange 36H 9T Cassette 14mm Cromo Hollow axle 4 Sealed bearing Spokes: Front Tyre: Odyssey Aitken 2.25 Front Rear Tyre: Odyssey Path 2.1 Rear Seatpost: clamp What is a BMX Bike This style of bike tends to be stronger and more robust than most thanks to its small frame and single gear. Its popularity was hit hard by mountain bikes but the BMX has had a growing popularity for many years now. There are many different riding stylesterms: race freestyle vert dirt jump street. For more information on BMX bikes see our BMX Buying Guide.