GT BMX Conway Team Bike - Purple Sizes:21" Top Tube Frame:GT FS Design, Cr-Mo Front Tri (T/T, D/T, S/T), DT Gusset, MID BB , Seat Stay Mounted U-Brake, Integrated 1-1/8" H/T w/ Removable Rotor Tabs, Odyssey Springfield Brake compatible Fork:GT FS Design, CR-MO 2pc. Threaded Steerer, 31.8- 28.6mm Tapered O.D. Blades, 31mm Offset, 3/8" Axle Dropouts Chain:KMC Z410 Crank:GT Power Series Tubular Cr-Mo 3Pc., 170mm Arms, Cold Forged CR-MO 19mm x 8T Spline Spindle, 25T GT Steel Chain Wheel Bottom Bracket:MID Sealed Bearing Pedals:GT Low Profile FS Platform Design, PP Material, Cr-Mo Axle Rims:Alloy Single Wall (F), Double Wall, (R) 20" 36 Hole Tires:GT Pool 20x2.3" (F/R) Hubs:Front: Alloy Body, Sealed Bearings 3/8" Axle, 36 Hole,15mm Nut. Rear: Alloy Body, 5pcs Sealed Bearings, Cr-Mo 14mm x 180mm Axle, 9T Cassette, 36 Hole, 17mm Nut Brake:Rear: Aluminum U-Brake w/ Soft compound Pad Brake Levers:Alloy Handlebar:GT Freestyle 4pc., Steel, 9"H x 29"W, 5?Up, 9? Back Stem:New GT Top Load, 1-1/8", Cold Forged Cap, 32mm Rise, 50mm Length Grips:GT Super Soft 155mm Single Compound w/ GT removable plug Headset:1 1/8" Integrated Design, 45X45 Degree Sealed Bearings Saddle:GT Pivotal Padded Seat Post:Alloy Pivotal 25.4 x 200mm Seat Clamp:Built-in clamp