The CeramicSpeed OSPW Aero ALPHA system for Red/Force AXS derailleurs updates the fastest proven aero derailleur cage to include the CeramicSpeed's patent pending ADR bearing protection and quiet performing ALPHA disc with composite tooth profile pulleys. Furthermore, a speed defying pinstripe graphic has been added for a splash of visual motion.Fully compatible with the latest 2024 version of 's RED AXS groupsetInjection Molded Carbon Fiber reinforced PA Aero cage reduces aerodynamic drag on the rear derailleur by up to 60% and offers new levels of strength and durability. Alpha disc pulleys are paired with a composite, narrow-wide tooth profile to help prevent debris from external objects getting stuck. The 15-tooth upper and 19-tooth lower Alpha pulley wheels feature ADR.
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