... monocoque construction, AeroTaper 1.125 - 1.25 carbon fiber steer tube w/ integrated crown race, crown, blades & dropouts Headset: FSA No ... x 5mm PC headset spacer, Felt compression device, carbon fiber top cap & aluminum bolt Bars: 3T Aerotundo LTD carbon fiber, 124mm reach ... , 220tpi, 700 x 23c Rear Seatpost: Felt VariMount Aero Road flip position UHC carbon fiber, 350mm length