Specifications Bottom Bracket : Shimano SM-BB71-41B Brake Calipers : Shimano Ultegra 6800 Cassette : Shimano 105 5800 - 12/25 Chain : Shimano HG600 Crankset : Shimano Ultegra 6800 - 52/36 Fork : KR36 Carbon Frame Material : 5750 HM Carbon Front Derailleur : Shimano Ultegra 6800 Handlebar : FSA Omega Compact Headset : FSA 53-1 + 3D - 1 1/4" Pedals : Not Included Rear Derailleur : Shimano Ultegra 6800 Saddle : Prologo Kappa Evo Seatpost : Argon 18 ASP-1600 Shifters / Levers : Shimano Ultegra 6800 Stem : FSA OS-168 Tires : Mavic Wheel - Front : Mavic Aksium S Wheel - Rear : Mavic Aksium S