Frameset Sizes: 15" Frame: Steel Full Suspension Front Suspension: ZOOM Suspension fork,40mm Rear Suspension: Steel, 750LB Wheels Wheels: Alloy 36H Rims Tires: 24 X 2.125" Extra Seat post with QR Drivetrain Shifters: SHIMANO RS35, 6 speed Grip Crankset: Steel 40T,152mm Freewheel: SHIMANO TZ20 14-28T, 6 speed Pedals: PP Front Derailleur: N/A Rear Derailleur: SHIMANO TX300B Components Seat Post: Steel 28.6 X 250mm Handlebar: Steel 580mm,30mm rise Stem: Alloy, 28.6mm Headset: Steel 1-1/8" threadless Brakeset: Front Disc & Rear "V" Brake w/ PP Lever