CeramicSpeed OSPW RS ALPHA rear derailleur cage for Shimano 9250/8150 12-speed Niro Special Edition

The CeramicSpeed OSPW RS ALPHA Niro Special Edition for Shimano Dura-Ace 9250 and Ultegra 8150 represents the ultimate evolution of high-performance oversized pulley bodies. Its modernised design, which is more angular and streamlined, integrates perfectly with current Shimano groupsets and enhances both stiffness and stability. This Niro version, featuring black ALPHA disc pulleys, combines premium aesthetics with exceptional mechanical efficiency.

The system incorporates innovative ADR (Active Debris Remover) technology, a patent-pending device that actively protects the bearings by expelling debris with every rotation. The result: ultra-smooth, quiet and durable operation, even in challenging conditions.

The ALPHA pulleys, tested in cyclo-cross at the highest level, offer unrivalled mud and debris clearance thanks to their aluminium + composite structure and reinforced solid disc.

Hand-assembled in Denmark, this OSPW RS system guarantees a measurable performance gain, superior longevity and an exclusive look to enhance your road or gravel drivetrain.

Technical specifications:

- Use: Road, Gravel, Cyclocross
- Compatibility: Shimano Dura-Ace RD-9250 & Ultegra RD-8150
- Bearing type: CeramicSpeed bearings with ADR anti-debris technology
- Rollers: ALPHA Disc Rollers – aluminium + composite – Niro Special Edition
- Key benefits: Maximum efficiency, active debris clearance, enhanced stiffness, modernised design, extreme durability
- Weight: 102 g
- Brand: CeramicSpeed