The fork is an S-Works FACT Carbon unit. Rear Derailleur: Shimano Ultegra Di2 R8150, 12-Speed. Front Derailleur: Shimano Ultegra Di2 R8150. Shifters: Shimano Ultegra Di2 R8170 Hydraulic, 12-Speed. Drivetrain: 52/36T Shimano Ultegra R8100 crankset (175mm arms) paired with a Shimano Ultegra 11-30T 12-speed cassette.