A New Star is born! The ultimate goal is to improve the bicycle: to make it more efficient, with less rider fatigue and no sacrifice in strength or reliability. The design must be striking. From a marketing standpoint, the frame's characteristics and technical advantages must stand out and not be completely hidden inside the frame. Star-shaped tubes are a proven design element and have become a signature design element for Colnago frames. It is from this proven design, with the goal of increased frame efficiency without significant sacrifice in comfort or strength, with which the Colnago C6 was born. In the C6 various cross sections of tubes have increased volume, thinner walls and drastic tube profiles. No attention to detail was spared. The rear dropouts have been completely redesigned for reduced weight and increased lateral stiffness. Even the water bottle mounts were redesigned to reduce weight while maximizing strength. 1% Made in Italy Lavishly designed pipes in the master design with internal stiffening ribs and variable designed wall thickness and reinforcement chambers in the structurally stressed zones. Depending on the frame size, the wall thickness, pipe diameter and the internal structural reinforcement zones changed to each frame size to ensure the perfect performance. 9 frame height with sloping geometry and five frame sizes with traditional geometry and straight top tube. Internal cable routing for the rear brake cable and the shift cables. BB86 press-fit bottom bracket shell - diameter seatpost 31.6 mm bearing seat for press-fit bearings in the bottom bracket interchangeable (ThreadFit82.5) head tube 1 1/8" - 1 1/4" tyres max. 7x25 mm The Dura Ace component group is the result of 4 years of development and innovation and has proven itself in countless hardness testing to the absolute limit and under competition conditions in the race, time trial and cyclo-cross scene. The Dura Ace now has a 11-speed cassette with lot of gradation options providing the correct translation for all situations. State of the art design, latest materials and manufacturing processes cause, that the weight is reduced and that the stiffness and controllability are increased. Every innovation, every detail followed a single purpose: lend the power to the Dura Ace, which makes the driver faster.