Colnago C64 Rim

Pictures displayed are purely indicative.

 

Perfection of Made in Italy

The Colnago C64 Disc represents an evolution from the C60 Disc. The frame features all new materials but is made with the same handmade construction technique at Colnago’s Cambiago factory.

Colnago C64 Disc: completely handmade – “tailor-made,” it could be said – in Italy, with revolutionary tubes (larger, lighter, more durable), the C64 is the fruit of more than two years of research. Yet, it was designed based on an almost immeasurable history of cycling innovation and success – one which began in 1954. The Colnago C64’s tubes and lugs are made of the finest carbon fiber, making it a unique frame in the world – one that cannot be compared to anything else. In the C64’s design lies Ernesto Colnago’s knowledge and experience, gained from a lifelong pursuit of cycling perfection.

Features

Fork
The fork of the C64 has an external rib shape which provides the rider with extra comfort whilst boosting ride quality. the internal rib has a long nut laminated on the inside with a threaded aluminum insert that increase stiffness and strenght. The fork houses pivots for the direct-mount brakes. The fork lenght, increased by 5 mm, retains the same stiffness but brings down the weight.

Bottom Bracket
The C64 uses Colnago’s ThreadFit 82.5 standard. It combines the reliability and practicality of a threaded (BSA) bottom bracket, the width and the greater rigidity of the PressFit standard. Inside the bottom bracket juncture there is an aluminum threaded sleeve in which two lightweight alloy cups are treaded into. Within these, the bearings are pressed – removable when needed. The ThreadFit 82.5 standard is compatible with all PressFit 86.5 (BB86) bearings. The cable guide is now moulded into the carbon fibre, to save weight as well as to offer the biggest possible radius for the shifting performance.

Seatpost
To maximize aerodynamics and integration, they used a special seatpost for the C64. Using the proven forged aluminum head used on models currently in production, a smaller section tube (approximately 27.2 mm) has been designed and constructed to provide comfort. The aerodynamic profile (also with a truncated profile – matching the seat tube) guarantees the best aerodynamic performance. The default post has 15mm setback.

Seat Tube
Constructed from a single piece, from the base to the apex, the C64’s seat tube is lighter and, above all, more rigid so it can transmit all the power delivered by the cyclist to the road.

Seat Clamp
The seat clamp is integrated into the top tube for a cleaner aesthetic and improved aerodynamics. The mechanism is housed completely inside the frame, easily accessible with a hexagonal wrench. This solution also protects the mechanism from dirt. The weight reduction is around 15g and with the aluminum bed co-moulded with the carbon, the bottom pull concep also provides further locking strenght.

Asymmetrical chain stays
On the right side (transmission side), the frame dimensioned as big as possible, while the left side is oversized. In this way the frame is even stiffer and, thanks to the possibility of increasing the section of the tubes, lighter.

Headset
The headset’s body is made with a special polymer, composed of carbon fiber and a unique mixture of nylon and elastomers. This feature provides additional absorption of road vibration, improving both the riding experience and comfort.

Integrated bottom bracket cable-guide
It is integrated into the mold of the bottom bracket lug. This feature provides maximum compatibility, ease of assembly and added lightness. A small detail with great benefits.

Rear triangle
Another key area where is completely changed the technology is the chainstay/dropout area. The C64’s dropouts are now fully part of the chainstays. The one-piece construction allowed us to lower the weight, add vertical compliance, and retain the same lateral stiffness. The replaceable derailleur hanger is the very same, internally mounted hanger used on all our current road rim-brake frames. The lightweight monocoque seat stay is designed around very wide tyres and houses the inserts for direct-mount brakes

Tire clearance
While lower weight has so far been the key point of the new frame, tire clearance is another important factor Colnago had to address while designing the new C64. The frame has a clearance of a 36.5 mm diameter, which means you can use all 28 mm tires with plenty of room to spare. Brakes are the limiting factor here, so the disc version has a bit more space.