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Headtube:   
 
The most striking difference between the C59 and C60 is the new tube shapes and its matching shaped lugs. The main tubes are shaped in the famous star design of the Master tubes the full length of the tubes, with no round cross section where the tubes meet the lugs. This is a first for Colnago. Lateral stiffness of the entire front triangle will increase. At the same time, the impacting forces during a rough ride will be better distributed, ensure a higher impact resistance.

It may look simple, but achieving the shaping of the head-tube in this way is extremely difficult. Tubes and head tube lugs must be manufactured with paramount precision and tolerance.

As a direct result of this technical improvement, the vertical wall found in the C59 was able to be eliminated, further reducing weight while adding comfort.

This feature, unique to the C59, was a limiting factor in the design and manufacturing process. The full length star tube on the C60, by comparison, allows better control of the wall thickness and lamination of the entire length of the tube.  This is a huge step forward regarding strength, reliability and comfort. 

PLUS
• Stronger
• Laterally stiffer
• Better transfer of impact forces
• No limitation for tube construction