CeramicSpeed OSPW Pulley Wheel Aero System Shimano 9100/9150 8000 SS/8050 SS - Coated Races Alloy Pulley Carbon Cage BLK
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Orders $350+
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We’re a mission-driven bike shop based in Colorado. Every sale helps refurbish and donate bikes to those in need through Bicycles for Humanity Colorado.
Each item has been professionally inspected, thoroughly cleaned, carefully refurbished, and is ready for immediate use.
CeramicSpeed OSPW Pulley Wheel Aero System Shimano 9100/9150 8000 SS/8050 SS - Coated Races Alloy Pulley Carbon Cage BLK
The CeramicSpeed OSPW Aero System dramatically reduces drag, turning your existing Shimano setup into a more efficient, race-ready drivetrain. In wind tunnel testing, it achieves an average drag reduction of 40% compared to stock derailleurs, so you can ride faster with less effort on long climbs and fast descents. Developed in collaboration with aero experts and Drag2Zero, this upgrade streamlines frontal area and smooths trailing wind for a tangible edge on real-world rides.
Who is this for?
Designed for performance-minded cyclists using Shimano Ultegra 8050/8000-SS platforms or Dura Ace 9100/9150 lineups who want meaningful aero gains without sacrificing reliability or maintenance simplicity.
| specifications | details |
|---|---|
| Brand | CeramicSpeed |
| Pulley wheels | 13-tooth upper and 19-tooth lower aluminum wheels |
| Bearings | Grade 3 Silicon Nitride balls with coated bearing races |
| Cage material | Robust polyamide and carbon fiber |
| Coated bearing races | Yes — increases hardness, reduces corrosion, extends bearing life |
| Color | Black |
| Drivetrain speeds | 11 |
| Fits Brand | Shimano |
| Fits Model | Ultegra R8050-SS/GS |
| Largest Cog | 32 |
| Shifter/Derailleur Compatibility | Shimano |
| Drag reduction | Average 40% drag reduction vs stock derailleurs; wind-tunnel tested and Drag2Zero-aligned design |
| Compatibility notes | Not compatible with Ultegra 8000-GS or 8050-GS (medium cage) nor with clutch-equipped Ultegra RD RX800/RX805 |
| Warranty | CeramicSpeed products with coated bearings include a lifetime warranty |
Each item is professionally packed and shipped next day. Select in-store pick-up at checkout and visit us if you are local!
| Defined Color | Black |
| Drivetrain Speeds | 11 |
| Fits Brand | Shimano |
| Fits Model | Ultegra R8050-SS/GS |
| Largest Cog | 32 |
| Shifter/Derailleur Compatibility | Shimano |
| keyword search | OSPWS Aero |
