The Specialized S-Works Roubaix SL3 Compact 2012 Features are: Frame: S-Works FACT 11r carbon, FACT IS construction, Cobra 1-1/8 inch to 1-3/8 inch head tube, compact race design w/ Zertz inserts, internal cable routing, carbon OSBB Fork: S-Works FACT carbon, full monocoque, Zertz inserts Headset: 1-1/8 inch upper and 1-3/8 inch lower Cr-Mo cartridge bearings, w/ 8mm carbon cone spacer and 20mm of carbon spacers Bars: S-Works SL carbon, shallow drop Stem: New S-Works ProSet Stem, 7050 3D forged with carbon-clip front cap/cone, 4-degree shim, CNC head bolts Speed: 20 Front Mech: Shimano Dura-Ace Rear Mech: Shimano Dura-Ace Shifters Shimano Dura-Ace STI, Flight Deck compatible, 10-speed Chainset: S-Works SL FACT carbon, S-Works SL 50/34 Bottom Bracket: OS integrated, ceramic bearings Cassette: Shimano Dura-Ace, 10-speed, 11-28t Chain: Shimano Dura-Ace Front Brake: Shimano Dura-Ace Rear Brake: Shimano Dura-Ace Rims: DT Tricon RR1450 Tubeless ready Front Hub: DT Tricon RR1450 Tubeless ready Rear Hub: DT Tricon RR1450 Tubeless ready Spokes: DT Tricon RR1450 Tubeless ready Tyres: Specialized Turbo Pro w/ BlackBelt, 127 TPI, aramid bead, 700x25c Front Specialized Turbo Pro w/ BlackBelt, 127 TPI, aramid bead, 700x25c Rear Seatpost: S-Works FACT carbon w/ Zertz insert, 27.2mm