... 1-3/8" headtube, internal cable routing, carbon OSBB Fork: Specialized FACT carbon, full monocoque Headset: 1-1/8” upper, 1 ... , steel bearings, w/ custom Venge 15mm top cap Bars: S-Works Aerofly Stem: Specialized Pro SL, alloy, 4-bolt Speed: 22 Front Mech ... : Shimano 105 Rear Mech: Shimano 105 Shifters Shimano 105 Chainset: Praxis Works ...