2024 Ceramic Speed OSPW Aero ALPHA for Shimano 9250/8150 - Black

Ceramic Speed
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2.00 LBS
10.00 (in)
10.00 (in)
8.00 (in)
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The CeramicSpeed OSPW Aero ALPHA system for Shimano 9250/8150 derailleurs updates the fastest proven aero derailleur cage to include our 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.

In the box:

  • Complete OSPW Aero ALPHA for Shimano 9250/8150 system

Product Highlights

Reduces aerodynamic drag on the rear derailleur by up to 60%

Reduces friction by 35-40% over stock pulley configuration

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

Road and Tri
Derailleur Brand:
Pulley Material:
Derailleur Model:
Dura Ace RD-9250 and Ultegra RD-8150