CeramicSpeed OSPW RS Pulley Wheel System - SRAM Red | Force AXS
Derailleur Parts
CeramicSpeed OSPW RS Pulley Wheel System - SRAM Red · Force AXS
CeramicSpeed OSPW RS Pulley Wheel System - SRAM Red | Force 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. Read the overview
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Overview
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.
All the specs
- Bearing Type
- CeramicSpeed oversized ceramic bearing pulleys
- Cage Construction
- Reinforced for strength and durability
- Warranty
- 4-year standard / Lifetime on coated versions
- Origin
- Denmark
Works with
- SRAM RED AXS
- Force AXS rear derailleurs
FAQ
Good questions
Get to know CeramicSpeed
There's more to CeramicSpeed than this one product. Our CeramicSpeed page has the full CeramicSpeed lineup we carry and more about the brand.
Visit the CeramicSpeed page →How much friction does the OSPW RS actually save?
CeramicSpeed testing shows measurable watt savings compared to stock derailleur pulleys at race-level power outputs. The oversized pulley diameter reduces chain articulation, which is one of the largest friction sources in a drivetrain.
Is the OSPW RS compatible with both RED and Force AXS?
Yes. The OSPW RS is designed to fit both SRAM RED AXS and Force AXS rear derailleurs. Confirm your specific derailleur generation before ordering, or contact Dialed Cycling Lab for fitment help.
What changed in the RS design compared to older OSPW systems?
The RS features a redesigned angular cage that blends with modern AXS aesthetics, plus structural reinforcement for improved rigidity and durability. The bearing and pulley efficiency remain at the same world-class CeramicSpeed standard.
Reviews
What riders say about the Lab
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