This is an updated version of the oversized pulley wheel system for Shimano 9100/9150 and 8000 SS/8050 SS. This new design features an integrated stop-wing for easier installation. The CeramicSpeed Oversized Pulley Wheels System has proven to be the fastest pulley wheel system in the world, providing an energy saving of 2.4 watts compared to standard Shimano systems. The OSPW system for Shimano 9100/9150 and 8000 SS/8050 SS is an industry-leading product chosen by many of the world's top teams and professional athletes. It features a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel, providing absolute optimization of your rear derailleur. The upper and lower oversized aluminum pulley wheels are equipped with either standard or coated CeramicSpeed ceramic bearings. Note: The OSPW system for 9100/9150 and 8000 SS/8050 SS is not compatible with Ultegra 8000-GS or 8050-GS derailleurs (medium cage), nor with the Ultegra RD RX800 & RX805 clutch. For a compatible version of RX800 and RX805, please see our OSPW X for Shimano RX800/805. For a compatible upgrade for Ultegra 8000-GS or 8050-GS, please see our Pulley Wheels for Shimano, 11s NW. Although there are similarities in design, this OSPW is not compatible with Shimano 12-speed 9200 or 8100 series derailleurs. The Shimano 9100/8000 OSPW system is compatible with up to a 32-tooth cassette for both Dura Ace and Ultegra derailleurs. In the box: Complete OSPW for Shimano 9100/9150 and 8000 SS/8050 SS system CeramicSpeed Oilings for pulley bearing.15ml dropper bottle
| Groupset | Other |
| product ID | 332736 |
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