Campagnolo Chorus 12-speed with 11-29 teeth has been designed to achieve maximum synchronization, shifting speed, ergonomics, performance, precision, reliability, and silent operation. The Chorus 2x12-speed groupset is fully compatible with the cassettes launched with the Super Record and Record 2x12-speed groupsets with 11 to 29T and 11 to 32T. This cassette benefits the entire range of 12-speed Campagnolo mechanical drivetrains. The new Campagnolo cassette 11-34T in fact offers cyclists even more versatility and greater choice and autonomy in terms of available gears. It is only compatible with Campagnolo's Chorus 12s drivetran. 

The teeth design optimizes the speed and smoothness of shifting. The shape of teeth reduces stress on the chain which ascends more easily onto the higher diameter sprockets. With two bigger sets of three in a single-block piece eliminates energy dispersion.

Campagnolo Chorus 12-speed has the same width as 11-speed cassettes. For longer component life, maintaining maximum performance through time the Chorus cassettes must be used only with Campagnolo 12-speed components sets.

Features:

• 12 SPEED
• 11-34T RATIO (11-12-13-14-15-16-17-19-22-25-29-34)
• Same width as the 11-speed cassette - totally compatible with wheels and frames.
• The two bigger sets of three in a single-block piece - It eliminates energy dispersion.
• Same-thickness spacers - Ensures error-free fitting.
• Can be updated from the 11-32 cassette
• ULTRA-SHIFT™ TEETH DESIGN: every sprocket tooth is designed and placed to perform a specific function, such as raising or lowering the chain or giving maximum power transmission to the wheel.
• ULTRA-SHIFT™ SYNCHRONIZATION: sprocket tuning allows for maximum shifting performance without hesitation: fast, accurate, and quiet, even under stress.
• Last two triplets machined from monolithic steel for stiffer structure, lower weight and precise shifting
• Chain retention teeth on 12th sprocket
• NICKEL-CHROME SURFACE TREATMENT: reduces chain/sprocket friction and improves smoothness - extends sprocket life
• For performance, longevity and functionality the Chorus drivetrain must be used with the mechanical Campagnolo 12-speed drivetrain components.
• Weight: 350 g

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