Key Features of the Framed Attack Pro BMX Bike: Frame - Chromoly Triangle. Forks - 1-1/8Th Chromoly Legs. Bars - Framed 2Pc Chromoly Bars (8 3/4" Tall X 29" Wide). Grips - Velo Mean Mug 147mm. Stem - Framed Alloy Front Load. Headset - Neco 28.6 6/34/30mm. Brake Lever - Apse Alloy Lever W/Adjuster. Brake - Apse Alloy U-Brake. Cranks - 3Pc Chromoly Tubular 175mm W/Unsealed American Bottom Bracket. Sprocket - 25T Steel. Chain - Kmc Z410 Half link. Pedals - 9/16" Nylon Composite. Front Hub - 3/8" Kt Unsealed Hub. Rear Hub - 14mm Kt/Quando Unsealed W/9T Freewheel. Rims - 36H Double Wall Anodized Alloy Pinned. Tires - Innova 2128 Front 20" X 2.3"- Rear 20" X 2.3". Saddle - Frame Attack Pro Pivotal Saddle. Seat Post - Alloy Pivot Post . Clamp - Framed Alloy Clamp. Pegs - Not Included. Top Tube - 20". Seat Tube - 8". Chainstay - 13.5". BB Height - 10.5". Approx. Weight - 25lbs 11oz. Wheelbase - 38". NOTE: All complete bikes are sold and delivered partially assembled. Final assembly and an overall check of the bike must be completed by a qualified bike technician. Failure to have the bike assembled and checked by a qualified technician may void the warranty and could result in damage and/or injury if not assembled correctly.