Colnago has paid specific attention to the race geometry of this frame. They have achieved a frame design, which achieves superb torsional stiffness without sacrificing comfort in any way. They chose a 27.2mm seatpost diameter to aid comfort further as it is generally associated with greater flexibility, comfort and with being light. An alloy/carbon fork increases the stiffness and response of this bike. The carbon fork blades are also aerodynamically efficient and aid in slicing through the air at high-speed. To complete the frame slickness, it features a press-fit bottom bracket and semi-integrated cable routing, which provides a clean finish. Shimano 105 Drivetrain The Shimano 105 drivetrain is efficient, crisp and shifts fluidly. Featuring Shimano Vivid Shift technology, which has a light to the touch, positive shift feel the whole way across the 11-Speed drivetrain. Power is driven by the Shimano 105 Hollowtech II chainset that is significantly stiffer and lighter than the square taper equivalents. This crankset is also very easy to maintain and it looks great on the bike. Power is transferred from the crankset across the cassette with unmatched smoothness and will apply this power to the road with hassle-free, admirable efficiency. Built, Tuned and Tested Rest assured that each bike is fully built, tested and tuned by Wiggle's team of qualified bike mechanics to ensure your bike arrives in perfect condition. Find out which size fits you by clicking the size chart tab.