Is the CeramicSpeed OSPW RS the Best Upgrade for SRAM AXS?

The CeramicSpeed OSPW RS Pulley Wheel System is the definitive rear derailleur upgrade for SRAM RED and Force AXS groupsets, replacing stock pulleys with oversized, ultra-low-friction ceramic bearing wheels that reduce drivetrain resistance and smooth out pedaling under load. The updated RS design brings a modern, angular aesthetic that integrates cleanly with the contemporary lines of AXS derailleurs, and the reinforced cage delivers new levels of strength and rigidity compared to previous OSPW generations. This is the upgrade for riders who want measurable efficiency gains and a finished look that belongs on a high-end AXS build.

The engineering behind the OSPW RS goes beyond aesthetics. Oversized ceramic bearing pulleys reduce chain articulation angles and improve chain wrap geometry, lowering friction across the entire drivetrain with every pedal stroke. Developed and designed at CeramicSpeed's facility in Denmark, the OSPW RS is compatible with both SRAM RED and Force AXS rear derailleurs and backed by a 4-year warranty on standard models and a lifetime warranty on coated versions. For competitive road cyclists and serious gran fondo riders looking to extract every watt from a SRAM AXS build, this is the first upgrade to make.