The Campagnolo Chorus Groupset, light weight race ready and now 11 speed

The Chorus groupset was designed to be a perfect competition tool. 11 speeds, avant-garde technical solutions, extremely high technology and extraordinary materials. All at a price that is difficult to believe.

This is the choice of high-level athletes. It shares its genetic makeup with Super Record and Record 11 and this designates it for competition as does its level of reliability, life and construction tolerances, even if they are obtained through the use of a few less carbon composite parts.

• Rear Derailleur: The 11-speed rear derailleur has a forged aluminium upper body which works on an enveloping and oversized carbon fibre outer plate. The new form confers torsional rigidity which is 150% greater than the old design and contributes to the construction of a parallelogram with absolute operating precision. The cage pulleys are now made of a lighter material and reduce vibrations.
• Front Derailleur: Ultra-Shift front derailleurs are more rigid while thanks to the new chain guide fork the operating speed and ease of use and adjustment are enhanced. Furthermore, the anti-friction treatment extends their lifetime. The fastening system has also been redesigned in the clamp versions for improved compatibility with the bicycle frame.
• Ergo Levers:The new Ergopower Ultra-Shift controls are ideal for the 11-speed drivetrain. The reworked form permits a better grip for the rider's hand and absolute operating precision. It could not be otherwise given the reduction of the working spaces. The right-hand allows you to shift the chain up to three speeds upwards and up to five downwards. The advantage is in the excellent shifting speed in every situation. Operating fluidity has also been improved. Thanks to a favourable lever ratio the force required for actuating the front and rear derailleurs is a lot lower than with the old controls. The gain amounts to 13 percentage points for the rear derailleur and 18 for the front derailleur.
• Chainset: We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.
• Calipers: Forged aluminium alloy and differentiated design for th chorus series skeleton brakes. This ensures maximum power for the front and progressiveness for the rear. The pad orbital adjustment possibility always permits the best contact with the braking tracks.
• Cassette: The teeth have been designed to optimize the speed and fluidity of shifting. This form reduces stress on the chain which ascends more easily onto the higher diameter sprockets. The large pinions are divided into sets of three and are mounted on a new aluminium frame. Thanks to this, rigidity increases 180% and the individual sprockets are 70% more resistant to torsion.