CeramicSpeed Alpha RS OSPW for Shimano 9250/8150

CeramicSpeed Alpha RS OSPW for Shimano 9250/8150

The CeramicSpeed Alpha RS OSPW for Shimano 9250/8150 rear derailleurs is the most advanced oversized pulley wheel from CeramicSpeed. This OSPW is for riders who demand the most efficient drivetrain without sacrificing shift quality. It combines cutting-edge design with premium materials to deliver unmatched performance. Featuring a lightweight carbon fiber derailleur cage and redesigned shape, the Alpha RS OSPW is lighter and stiffer than ever. The updated cage design not only improves aesthetics, but also makes the derailleur cage stronger. This provides better shifting, especially under load.

Additionally, it features premium ceramic bearings and Active Debris Remover shields which make it virtually impossible for debris to enter the ceramic bearings. By using oversized 15T upper and 19T lower pulley wheels, this OSPW minimizes chain articulation to reduce drag and improve chain life. Whether you race, train or simply want the best, the Alpha RS OWSP is a premium upgrade for Shimano 9250 or 8150 rear derailleurs.

Please note, it is recommended to use a new chain as the CeramicSpeed OSPW system requires a longer chain than the stock derailleur cage.

Product Details

Key Features of the Alpha RS OSWP for Shimano 9250/8150

• Oversized Pulley Wheels: Larger pulley wheels reduce chain articulation and increase efficiency.
• Active Debris Remover: Redesigned dust shields make it virtually impossible for dust and dirt to enter the bearings.
• CeramicSpeed Alpha RS OSPW: Redesigned for improved stiffness and efficiency, this OSPW features a lighter and stiffer cage for improved shifting.
• Premium Ceramic Bearings: Helps to reduce drag as your chain moves through the derailleur cage.
• Clean Aesthetic: A visually sleek setup that improves the look of any bike.

Compatibility

The CeramicSpeed Alpha RS works with Shimano 9250 and 8150 rear derailleurs and Shimano 12-speed chains. See Compatibility tab for more details.

Considerations

This is a premium component that provides marginal gains but has a high cost associated with it. 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 road cyclists, time trialists or triathletes who are looking for maximum drivetrain efficiency. This is a great upgrade if you are looking for maximum efficiency or an aesthetic upgrade for your drivetrain.

Other Versions to Consider

Shimano DURA-ACE R9250 with CeramicSpeed Alpha RS OSPW: We also offer this OSPW installed on a DURA-ACE R9250 rear derailleur, free of charge. The Shimano DURA-ACE R9250 Rear Derailleur with CeramicSpeed Alpha RS OSPW is assembled before it is shipped and ready to ride.