CeramicSpeed Oversized Pulley Wheel Aero System (Black) (Shimano 9100/8000) (Coated Ceramic Bearings)

CeramicSpeed Oversized Pulley Wheel Aero System (Black) (Shimano 9100/8000)
Back Order Now
You may back order this item and it will ship when it arrives.
FREE Shipping Eligible! Learn More
Price: $799.00

Please Log in to receive a notification when this item arrives in stock.

Save In List
This item earns up to 799 VIP Reward Points Learn More

CeramicSpeed OSPW Aero System Description:

CeramicSpeed's OSPW Aero system has been developed in close collaboration with one of the world's leading aerodynamicists. The development process behind the OSPW Aero spanned over two years, where extensive wind tunnel testing influenced multiple design iterations. The end result is an entirely new cage structure wrapped around our existing mechanically optimized design.


  • Locally reduces drag by an average of 40% compared to stock derailleurs
  • Developed in coordination with Drag2Zero
  • Refines aerodynamics by focusing on frontal area impact, as well as smoothing and controlling the trailing wind
  • Features 13-tooth upper and 19-tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls
  • Robust cage crafted from polyamide and carbon fiber for durability and light weight
  • Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion
  • Only compatible with Dura Ace 9100/9150 and Ultegra 8000-SS/8050-SS
  • Not compatible with Ultegra 8000-GS or 8050-GS (medium cage) nor with the clutch equipped Ultegra RD RX800/RX805
  • CeramicSpeed products with coated bearings include a lifetime warranty


  • Compatibility: Shimano Dura Ace 9100/9150, Ultegra 8000-SS/8050-SS
  • Speeds: 11 Speed
  • Max Cog: 32T
  • Color: Black

This product was added to our catalog on October 7, 2022