Thanks to Ultra Drive geometry which defines the forms and machining of the sprocket teeth and nickel chrome finish, the Campagnolo Chorus Cassette ensures fast precise shifting that remains constant over time.

• Aluminum carrier for the largest sprockets precision, rigidity and weight savings
• Sprocket synchronization fast precise shifting, less stress for the chain
• Ultra-Drive machining of the teeth chain passage optimization
• Nickel-chrome surface treatments longer life, lower wear
• Weight 220 g