bottom bracket: Cartridge sealed brakTektro MD-M300 Mechanical disc brake, 160mm rotor Cassette: Sunrace CSM55 8-spd 11-32t Chain: KMC Z72 crankset: Suntour XCC 48/38/28t Fork: GT Traffic fork with hydroformed alloy raked legs, Disc brake tabs, rack and fender eyelets, steel steerer. Frame: GT Traffic aluminum frame with hydroformed TT and DT, Integrated headset style head tube, Internal cable routing, forged drop-outs with chainstay disc mounts, removable derailluer hanger and all braze ons front derailleShimano FM-191 grips/tape: GT Dual Density Comfort design Handlebar: All New Melt forged Alloy Ahead type Headset: FSA internal sealed Ahead levers:ProMax 2-finger alloy pedals: New GT high impact nylon platform rack mounts: Yes Rear derailleur: Shimano Altus 8spd Saddle: New GT Traffic saddle Seatpost:Alloy one bolt seat pillar shifters: Shimano Acera 8spd stem:New GT 3D forged Alloy Ahead type Tires: 700x40c Schwalbe Roadcruiser w/ puncture protection and reflective sidewalls wheelset: Alex R500 disc specific aero profile For more information, please feel free to contact us or visit our official company website : Novirani.com