CeramicSpeed OSPW Aero Derailleur Pulley System - Alpha Disc | for Shimano Dura Ace/Ultegra Di2 (R9250/R8150)

The CeramicSpeed OSPW Aero ALPHA system for Shimano 9250/8150 derailleurs updates the fastest proven aero derailleur cage to include CeramicSpeed patent pending ADR bearing protection and quiet performing ALPHA disc with composite tooth profile pulleys. Furthermore, a speed defying pinstripe graphic has been added for a splash of visual motion.

The OSPW Aero ALPHA cages have been updated to accommodate the ADR equipped ALPHA disc pulleys.

It is not possible to add these pulleys to a previous gereration OSPW Aero cage.

Unique Product Features of the CeramicSpeed OSPW Aero Alpha System

• Proven in the wind tunnel with Drag2Zero
• Structural aerodynamic cage design
• Pulleys, cages, and bearings all produced and assembled by hand in Denmark
• ALPHA Disc pulleys with composite teeth for quiet performance and ADR bearing protection
• Full lifetime warranty on both cage and pulleys

In the box:

Complete OSPW Aero ALPHA for SRAM Red/Force AXS system