CeramicSpeed OSPW X Pulley Wheel System - SRAM Eagle AXS | Black
Derailleur Parts
CeramicSpeed OSPW X Pulley Wheel System - SRAM Eagle AXS · Black
CeramicSpeed OSPW X Pulley Wheel System - SRAM Eagle AXS | Black
The CeramicSpeed OSPW X Pulley Wheel System is purpose-built for SRAM Eagle AXS derailleurs, bringing the oversized pulley efficiency of CeramicSpeed's road pedigree to the demands of cross-country and trail riding. Read the overview
At a glance
- Upper Pulley
- 14-tooth
- Lower Pulley
- 18-tooth
- Cage Material
- Custom carbon fiber
1 in stock
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Overview
Why Do MTB Riders Choose the CeramicSpeed OSPW X?
The CeramicSpeed OSPW X Pulley Wheel System is purpose-built for SRAM Eagle AXS derailleurs, bringing the oversized pulley efficiency of CeramicSpeed's road pedigree to the demands of cross-country and trail riding. A narrow-wide tooth profile on both the 14-tooth upper and 18-tooth lower pulleys ensures reliable chain retention across aggressive terrain, while the custom-designed carbon fiber pulley cage keeps weight low and rigidity high under real-world trail loads. The result is a rear derailleur upgrade that reduces chain drag measurably while holding up to the abuse of off-road use.
Developed and designed in Denmark, the OSPW X is compatible with all SRAM Eagle AXS rear derailleurs and carries the same obsessive engineering approach that has made CeramicSpeed bearings the choice of WorldTour road pros. The ultra-low-friction bearing package inside each pulley wheel reduces drivetrain resistance across the cassette, delivering cleaner power transfer on climbs and technical singletrack. Standard versions come with a 4-year warranty, and coated versions are backed by a lifetime warranty, making this a long-term investment in your drivetrain's performance whether you are racing XC or pushing big gravel miles.
All the specs
- Upper Pulley
- 14-tooth, narrow-wide tooth profile
- Lower Pulley
- 18-tooth, narrow-wide tooth profile
- Cage Material
- Custom carbon fiber
- Warranty
- 4-year standard / Lifetime on coated versions
- Origin
- Denmark
Works with
- All SRAM Eagle 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 →Will the OSPW X work with my SRAM Eagle AXS derailleur?
The OSPW X is designed for all SRAM Eagle AXS rear derailleurs. If you are unsure about your specific model year or variant, reach out to Dialed Cycling Lab before ordering and we will confirm compatibility.
Why does the narrow-wide tooth profile matter off-road?
Narrow-wide alternating teeth engage both the inner and outer chain links, preventing chain drop under the load variations and impacts common in trail and XC riding without the need for a separate chain guide in most setups.
How durable is the carbon fiber cage in trail conditions?
CeramicSpeed engineered the OSPW X carbon cage specifically for off-road use, balancing weight reduction with the rigidity needed for mountain bike drivetrain loads. It is not a road cage adapted for MTB.
Reviews
What riders say about the Lab
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