Engineered for endurance. The C5's one-piece-molding frame and proprietary all-carbon component system are designed in-house as a single entity. This achieves a perfect harmony of comfort and responsiveness, making the bike feel like a natural extension of the rider. Frameset: Frame: Toray T700/T800 High-Modulus Carbon Fiber Fork: Winspace C5 Full Carbon Fork Headset: 1-1/2" Integrated Seatpost: Aero Carbon Seatpost Frame Weight: 1010g ± 30g (Size M) Groupset: Shifters: Shimano 105 Di2 ST-R7170 2 x 12 speed Crankset: Shimano 105 FC-R7100, 50/34T Front Derailleur: Shimano 105 Di2 FD-R7150 Rear Derailleur: Shimano 105 Di2 RD-R7150 Cassette:Shimano 105 CS-R7101.11-34T Chain: KMC X12R Bottom Bracket: Token Press Fit BB86 Components: Cockpit: ZERO SL Carbon Integrated Handlebar Saddle: Selle ltalia NOVUS BOOST EVO X-Cross Superflow Bar Tape: Selle ltalia SG-Tape Wheels: Wheelset: UNAAS HARD 50D Carbon Tires: Continental Ultra Sport lll, 700x28c Brakes: Shimano 105 Hydraulic Disc Brake Rotors: Shimano RT64,160mm Front /140mm Rear What to expect: Your new bike arrives 90% assembled. In addition to the pre-assembled frameset and components, the accessory box includes the following items for final installation: Saddle Seatpost Seatpost Wedge Carbon Rail Saddle Clamp Computer Mount Kit Spare Derailleur Hanger (one is pre-installed) Seatpost Dust Cover Water Bottle Cage Bolts (x4) Assembly Tool Kit Pedals