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Every sprocket tooth has been designed to achieve the maximum synchronization, shifting speed, and silent operation.
The six larger sprockets have a double frame system for extreme torsional stiffness, so that operating precision is maintained even during shifting under stress.
The surface treatment of the eleven steel sprockets assures longer component life, maintaining the maximum performance through time.
The Athena groupset uses the Chorus sprockets.
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.
REINFORCED MOUNTS FOR SECOND AND THIRD TRIPLETS:
greater sprocket set rigidity – performance, precision.
NICKEL-CHROME SURFACE TREATMENT:
reduces chain/sprocket friction – extends sprocket life
