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CeramicSpeed OSPW Shimano R9250/R8150 Black
CeramicSpeed OSPW Shimano R9250/R8150 Red
CeramicSpeed OSPW Shimano R9250/R8150 Gold
CeramicSpeed OSPW Shimano R9250/R8150 Blue
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CeramicSpeed OSPW Shimano R9250/R8150 1
CeramicSpeed OSPW Shimano R9250/R8150 2
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CeramicSpeed OSPW Shimano R9250/R8150 4

CeramicSpeed OSPW Shimano R9250/R8150


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Mfg PartNum:
MSRP: $589.99-$689.99
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Upgrade To The Fastest Pulley System In The World

Introducing the CeramicSpeed Oversized Pulley Wheel System for Shimano Dura-Ace 9200 and Ultegra 8100 with integrated stop tower for simple installation and durability.

The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest aftermarket pulley system in the world.

CeramicSpeed OSPW Systems are an industry leading product, chosen by World Champions and top athletes around the world. This OSPW System has handbuilt CeramicSpeed Bearings installed in each pulley and comes with a 4 year warranty as standard and a lifetime warranty when choosing coated or SLT bearings.

Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum pulley wheels come fitted with your choice of either standard or coated CeramicSpeed Bearings.

Note: Ultegra 8100 derailleurs, the cage uses the factory derailleur body washer. Dura-Ace 9200 derailleurs will require the new included derailleur body washer.


  • Power savings of 30%-60% or more over stock pulley wheel setups
  • The oversized pulley wheels have 3-5 times longer lifetime than stock pulleys
  • Compatible with Dura-Ace 9200 and Ultegra 8100 rear derailleurs
  • Includes complete 13-tooth/19-tooth OSPW System and 15ml bearing oil
  • Available in standard and coated bearing options
  • Available in Black, Red, Blue, or Gold colorways

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Please note: This product ships signature required.


Discipline: Road 

Speed: 12 


Ordered by Most Relevant First
5 stars
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1 stars
Reviewed 5/18/2023
by Anonymous
Cycling Enthusiast
San Francisco, CA
Value Rating
Overall Rating
Smooth w/ no issues +2 for Style points

Bike shop installed it but can speak to that it hasn't given me any issues.

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Reviewed 6/13/2023
by aharmon
Duluth MN
Overall Rating
Great Addition - US Stock!

Bling and performance in one piece...and fast domestic shipping from Western

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