CeramicSpeed OSPW RS ALPHA Derailleur Pulley System

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Regular price €299,95
Sale price €299,95 Regular price €579,00
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The CeramicSpeed OSPW RS ALPHA Derailleur Pulley System in black is designed to significantly improve your drivetrain's efficiency. This advanced system, developed specifically for performance-focused cyclists, optimizes power transfer and reduces friction in the derailleur. It is a direct upgrade for your Shimano Dura Ace RD-9250 and Ultegra RD-8150 rear derailleurs, integrating seamlessly with your existing setup.

CeramicSpeed is known worldwide for its leading components designed to maximize performance. The oversized derailleur pulleys, combined with superior CeramicSpeed bearings, minimize the resistance that typically occurs in a standard drivetrain. This results in measurable watt savings and noticeably smoother shifting, essential for both long-distance rides and intense race moments.

The robust construction and timeless black design of the CeramicSpeed OSPW RS ALPHA system enhance both the aesthetics and durability of your bike. Through careful engineering and attention to detail, this system provides a reliable upgrade for cyclists who refuse to compromise on speed and efficiency. The CeramicSpeed OSPW RS ALPHA Derailleur Pulley System delivers an optimized drivetrain for top performance.

OEM Info

This is an OEM product

With OEM products you get original top quality, but without unnecessary retail packaging. The focus is purely on the part itself, allowing you to benefit from the exact same top performance at a competitive price.

Read more about OEM

Brand CeramicSpeed
Suitable for Shimano Dura Ace RD-9250 and Ultegra RD-8150
Number of gears 12
Suitable for Shimano Dura Ace RD-9250 and Ultegra RD-8150
Color Zwart
SKU CS113490
Barcode 5711050125944

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    Updated on Apr 14, 2026
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