Ceramicspeed oversized pulley wheel system (ospw) shimano da9100/da9150 & ult8000/ult8050 3d pri

This is an updated version of the 3D-Printed Ti OSPW for Shimano 9100/8000. Mounting instructions for both this and the older version are to be found under our Support section.
This new design has an integrated stop tower for easier mounting.

The CeramicSpeed Oversized Pulley Wheel System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems.

The OSPW System for Shimano 9100/8000 is an industry leading product, chosen by many of the world’s leading cycling teams and professional triathlete’s.

Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels are fitted with coated CeramicSpeed Bearings.

Please note: The 9100/8000 system is not compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, or clutch equipped Ultegra RD RX800 & RX805. Please see our Shimano 11 Speed Pulley Wheels for a compatible upgrade.

Please note while there is design similarities this OSPW is not compatible with the 12-speed Shimano 9200 or 8100 series derailleurs.

In The Box

A complete 3D printed 13-tooth/19-tooth OSPW System
CeramicSpeed Bearing Oil in 15ml dropper bottle

The overall power savings of the OSPW System for Shimano 9100/8000 reach 30%-60%, or more in some cases, over a stock setup.

The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market.

The 9100/8000 system is not compatible with Ultegra 8000-GS (long cage) or clutch equipped Ultegra RD RX800 & RX805. Please see our Shimano 11 Speed Pulley Wheels for a compatible upgrade.

The Shimano 9100/8000 OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailluers.

This 3D-printed Titanium version of the OSPW System comes with our coated CeramicSpeed Bearings for even longer lifetime and lower friction.

Learn how to tell the Shimano 9100 and 9200 OSPW Systems apart here