CeramicSpeed OSPW RS Alpha Disc Shimano 9250/8150 Pulley Wheels Black

CeramicSpeed

CeramicSpeed OSPW RS Alpha Disc Shimano 9250/8150 Pulley Wheels Black\nCeramicSpeed OSPW RS Alpha Disc Shimano 9250/8150 Pulley Wheels Silver. Compatible with ShimanoDura Ace RD-9250 and Ultegra RD-8150 rear derailleur\nWith our OSPW RS for Shimano Road groupsets, we're lifting the OSPW into the future with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets - making up the whole of which the OSPW System is part.\n\nActive Debris Remover (ADR)\nADR is a patent-pending technical feature that is based on a unique combination that makes it virtually impossible for debris to enter the bearing. It consists of a new dust cover design that sits safely anchored in a groove in the pulley wheel, thereby completely enclosing the bearing.\nThis is paired with a bladed groove structure that surrounds the dust cover, which dynamically extracts debris fr.