OSPW for SRAM RIVAL AXS

The CeramicSpeed OSPW system for SRAM Rival AXS is a performance-driven upgrade that brings WorldTour-level efficiency to the Rival tier. It features a custom-molded carbon fiber cage paired with a 15-tooth upper and 19-tooth lower pulley wheel. This combination reduces the chain's articulation angle as it moves through the derailleur, which, when combined with CeramicSpeed's handbuilt bearings, reduces friction by 35–40% over the stock SRAM setup. Designed for riders who want to maximize their "free speed" on a Rival-equipped bike, this system offers two spring tension settings, allowing you to prioritize either the lowest possible friction for time trials or higher tension for rough road security.

Key Features

• Massive Friction Reduction: Proven to save significantly more energy than stock pulleys, allowing for a more efficient power transfer to the rear wheel.

   

• Optimized Pulley Sizes: The 15T/19T oversized design is specifically tuned for the SRAM 12-speed Flattop chain used in the Rival AXS ecosystem.

   

• Custom Carbon Fiber Cage: A lightweight, high-strength cage that provides the necessary stiffness for crisp, electronic shifting.

   

• Handbuilt Ceramic Bearings: Features high-grade silicon nitride balls that are 3-5x more durable than standard steel bearings used in factory derailleurs.

   

• Two Spring Tension Settings: Provides a customizable setup to balance drivetrain efficiency with chain retention based on your riding terrain.

   

Specifications

• Compatibility: SRAM Rival AXS (12-speed wireless road).

   

• Speed Compatibility: 12-Speed (Optimized for Flattop chains).

   

• Max Cassette Size: Supports up to a 36T cassette.

   

• Cage Material: Carbon fiber reinforced Polyamide.

   

• Pulley Material: Lightweight Aluminum.

   

• Bearing Options: Standard Ceramic or Coated (75% harder races).

   

Typical Components Included

• Complete OSPW System (Cage and 15T/19T Pulley Wheels).

   

• CeramicSpeed UFO Bearing Oil (15ml dropper bottle).

   

• Custom tool for removal of the stock SRAM cage.

   

• CeramicSpeed sticker sheet.