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SRAM XX SL Rear Derailleur with CeramicSpeed X OSPW

Power Meter City August 4, 2025

MPN:00.7518.184.000

$1,284.00

Professionally assembled by our techs and ready to ride – with a $100 discount to boot!

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SRAM XX SL Rear Derailleur with CeramicSpeed X OSPW

The SRAM XX SL Rear Derailleur with CeramicSpeed X OSPW is a unique offering where we professionally install the CeramicSpeed OSPW onto a new SRAM XX SL Rear Derailleur. This gives you a ready-to-use upgrade out of the box. It saves time, ensures proper installation and eliminates the need for additional tools or mechanical work. Just mount the derailleur and start riding with pro-level efficiency!

The SRAM XX SL Rear Derailleur is SRAM’s most advanced hangerless rear derailleur. Designed for 12-speed AXS mountain bike drivetrains, it offers lightning-fast shifting, even under load. Additionally, the XX SL derailleur is SRAM’s lightest MTB rear derailleur ever. With AXS integration, it can be easily adjusted and customized within the AXS App.

To push efficiency even further, we’ve paired this derailleur with the CeramicSpeed X OSPW. Featuring a lightweight carbon-reinforced cage, premium ceramic bearings and a redesigned cage shape, the X OPSW reduces drivetrain drag. This means more of your power is transferred to the wheels and not lost in your drivetrain. This OSPW uses 14T upper and 20T lower oversized pulleys. This minimizes chain articulation which minimizes drag and improves chain life.

CeramicSpeed’s updated cage design not only improves aesthetics, but also makes the derailleur cage stronger. This provides better shifting, especially under load. The Active Debris Remover shields also make it virtually impossible for debris to enter the bearings.

Please note, the SRAM AXS Battery is sold separately.

 

Product Details

Key Features

  • Installed and Ready to Go: We take the hassle out of installation by combining two high performance products into one seamless upgrade. This is done at no additional cost, just the price of each component.
  • SRAM XX SL Rear Derailleur: The XX SL rear derailleur is exceptionally light and provides fast and precise wireless shifting.
  • CeramicSpeed X OSPW: Redesigned for improved stiffness and efficiency, this OSPW features a lighter cage, ADR shields and premium ceramic bearings.
  • Improved Drivetrain Efficiency: The X OSPW improves drivetrain efficiency by reducing friction, allowing you to maintain speed with less effort.
  • Clean Aesthetic: A visually sleek setup that improves the look of any bike.

Compatibility

The SRAM XX SL rear derailleur and CeramicSpeed X OSPW work with SRAM AXS 12-speed MTB drivetrains. It is compatible with all sizes of SRAM Transmission cassettes and SRAM T-Type chains.

Considerations

These are both premium components that improve drivetrain efficiency, but come at a premium cost. In addition, we have found that CeramicSpeed OSPWs perform best when they are properly maintained (cleaned and greased), so this setup is best for someone who maintains the condition of their bike’s drivetrain.

Advice From Our Staff

We believe this is a perfect choice for mountain bikers who are looking to maximize drivetrain efficiency without sacrificing shift quality. Our team has never had quieter drivetrains than when using this set up. It’s pricey for sure, but if you’re looking for smoother shifting, reduced drivetrain drag and an improved look of your rear derailleur, this setup delivers.

 

Professional Assembly

We are happy to professionally assemble the OSPW to your rear derailleur. This ensures your OSPW is correctly installed and saves you time. Professional assembly includes:

  • Removal of the stock derailleur cage
  • Installation of the CeramicSpeed X OSPW
  • Inclusion of stock derailleur cage and CeramicSpeed miscellaneous parts

Please note – while we tighten everything to factory specs, it is still your responsibility to routinely check your rear derailleur and OSPW to make sure all bolts and nuts remain securely fastened.

Compatibility

  • Drivetrain: Compatible with SRAM Transmission 12-speed drivetrains
  • Chain: Works with SRAM T-Type chains
  • Cassette: Compatible with all sizes of SRAM Transmission cassettes

SRAM XX SL Rear Derailleur Specs

  • Speed: 12-speed
  • Color: Black

CeramicSpeed X OSPW Specs

  • Upper Pulley Wheel Size: 14T
  • Lower Pulley Wheel Size: 20T
  • Bearings: Hybrid ceramic bearings
  • Cage Material: Carbon

In the Box

  • SRAM XX SL Rear Derailleur
  • CeramicSpeed X OSPW (installed)
  • SRAM stock derailleur cage
  • CeramicSpeed pulley wheel bearing oil
  • CeramicSpeed Washer for SRAM XX, XO or GX rear derailleurs
  • 3 mm Allen key
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