Aero Direct Mount Chainrings for Shimano Dura-Ace R9200 Cranks Weight-153/46 }Zipp Cognition NSW Clutch Assembly

}Zipp Cognition NSW Clutch Assembly and Seal - Rear Hub Disc Brake / Rim Brake Generation 2

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This is made possible with a unique rail solution which combines the narrow nose with a standard 7mm titanium rail

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Aero Direct Mount Chainrings for Shimano Dura-Ace R9200 Cranks Weight-153/46 }Zipp Cognition NSW Clutch AssemblyDesigned for racing, and for those looking to optimize each detail in pursuit of speed, Wolf Tooth Aero Chainrings are strong, lightweight, and profiled to mate perfectly with your crankset for a clean, integrated look. Taking advantage of 1x drivetrain systems and wider range rear cassettes, Aero Chainrings for Shimano Dura Ace R9200 cranks are available in sizes 46T to 50T to provide similar overall range to standard 2x drivetrain configurations.