The oversized pulley wheel system for Shimano Dura Ace 9200 and Ultegra 8100 with integrated stop tower for easy installation and durability.

The CeramicSpeed ​​oversized pulley system has proven to be the fastest pulley system in the world.

CeramicSpeed ​​OSPW systems are an industry-leading product, chosen by world champions and top athletes worldwide.

This OSPW system has hand-built CeramicSpeed ​​bearings installed in each pulley and comes with a standard 4-year warranty and a lifetime warranty when choosing coated or SLT bearings.

Equipped with a 13-tooth upper pulley and a 19-tooth lower pulley to provide absolute optimization of the rear derailleur. The oversized aluminum upper and lower pulleys feature standard or coated CeramicSpeed ​​bearings.

Please note that while there are visual similarities between the 9100 OSPW series and the 9200 OSPW series, the spring tension settings, rotation stop tower placement, and mounting bolt depth are slightly repositioned and therefore the systems are not compatible with each other. The Shimano R-7150 12-speed 105 is currently not supported.

For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs require the new included derailleur body washer.

In the box:

• A complete 13-tooth/19-tooth OSPW system
• CeramicSpeed ​​pulley wheel bearing oil, 15 ml dropper bottle