Frameset Sizes: 15 Frame: Alloy Hybrid Front Suspension: ZOOM Alloy suspension fork, 40mm Rear Suspension: N/A Wheels Wheels: Alloy Double wall 36H Rims Tires: 700 X 35C Extra Front Wheel & Seat post with QR Drivetrain Shifters: SHIMANO EF500, 7 speed Crankset: Steel 28/38/48, 170mm Alloy crank BB Set: VP-BC73 Sealed Cartridge Freewheel: SHIMANO TZ21 14-28T, 7 speed Pedals: WELLGO PP Front Derailleur: SHIMANO TX51 Rear Derailleur: SHIMANO TY500D Crank: Alloy 28/38/48T, 170mm Bottom bracket: VP BC73 68X118 Components Seat Post: Steel 27.2 X 300mm Handlebar: Steel 600mm, 30mm rise Stem: ZOOM Alloy 28.6mm Headset: Steel 1-1/8″ threadless, 10 pcs Brakeset: Alloy “V” Brake w/Shimano EF500 levers Grips: HL Weight: 14