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Cognition DB hubset rolls efficiently whether you are pedaling or coasting
Manufacturer Part Number: PHB790B
The unique carbon fiber layer provides maximum support with minimal weight
Every high-performance aero-cockpit begins with a great base bar
CeramicSpeed OSPW X- Shimano GRX/Ultegra RX 2X Mountain Bikes Cognition DB hubset rolls efficientlyThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features 13 tooth upper and 19 tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Coated bearing races increase bearing service life by increasing hardness of race
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