The teeth of the Record™ sprocket set have an Ultra· Drive™ design that integrates the chain and chainwheels of the crankset to ensure fast, precise and consistent shifting through the years.

Steel-titanium version = excellent compromise between weight savings and cost
Aluminium carrier for the largest sprockets = precision and rigidity, 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 on steel = longer life, lower wear

• Ultra·Drive™
• Nickel-chromed finish for steel sprockets 
• Light alloy carrier 
• Supplied without lockring (except for 11-21, 11-23 and 11-25)