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The CeramicSpeed BSA (English) bottom bracket offers bearings with extremely low friction
For fixie or single speed set ups
More cable routing options
brake bleed ports
Finish: Frame-matched painted finish
CeramicSpeed OSPW Pulley Wheel System for Shimano 9000/6800 Series - Alloy Pulley, Carbon Cage, Black Default:Default The CeramicSpeed BSA (English) bottomThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Key Features Features two oversized 17 tooth aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Hardened steel bearing races Only compatible with Ultegra 6700 6770 6800 6870
US$ 21.76
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