Skip to main content

CeramicSpeed OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS

Josh Matthew September 2, 2022


Fastest pulley system in the world. 2.4 watts better than standard Shimano systems!

Clear selection

CeramicSpeed OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS

The CeramicSpeed OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS is compatible with DURA-ACE 9100 and Ultegra 8000 short cage derailleurs. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel, this OSPW provides absolute optimization of the rear derailleur.  In fact, CeramicSpeed Oversized Pulley Wheel System are the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems.


CeramicSpeed Pully Wheel = Saved Watts!

CeramicSpeed Standard Bearings last at least three times longer than other bearings. That’s thanks to hardened-steel races and CeramicSpeed Balls that are 100% smoother and 15% harder than other ceramic bearings. CeramicSpeed bearings have a frictional drag of 0.3-0.4 watts per set, which represents an average 75% drag reduction compared to other bearings.


Coated Finish Option

The unique coating formula is a metallic layer that covers the bearing races and makes them 75% harder than steel. Thanks to this, they are highly resistant to corrosion and the coating provides an even lower friction than the standard bearings. Even if the bearing is contaminated with degreaser, water or mud, the risk of bearing failure due to corrosion is negligible with the coated version. CeramicSpeed coated products are covered by a lifetime warranty.


This CeramicSpeed Pulley Wheel System for Shimano is compatible with Shimano DURA-ACE 9100/9150 and Ultegra 8000/8050 SS (short cage) derailleurs. Please note, it is not compatible with Ultegra 8000/8050 GS (medium cage) derailleurs, or with the clutch equipped Ultegra RD RX 800 and RX 805.

Not compatible with the 12-speed Shimano DURA-ACE 9200 or Uletgra 8100 series derailleurs.

Compatible with up to a 32 tooth cassette for both DURA-ACE and Ultegra.

In the Box

  • A complete 13-tooth/19-tooth OSPW System
  • CeramicSpeed Bearing Oil in 15 ml dropper bottle

There are no reviews yet.

Be the first to review “CeramicSpeed OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS”

The maximum upload file size: 5 MB. You can upload: image, audio, video, document, spreadsheet, interactive, text, archive, code, other. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Drop file here




  • 0 out of 5
    Scientifically designed to remove grease and grime from all drivetrain components
  • 0 out of 5
    CeramicSpeed performance for EVO386 Shimano road!
  • 0 out of 5
    Made for 41 mm x 86.5 mm bottom brackets and works with 30 mm spindle cranks
  • 0 out of 5
    The best chain lube we've ever used. Each bottle lasts over 10,000 km!

Shopping Cart