HOLLOWcage for Shimano 9100 / 8000. Our revolutionary mono-plate OSPW design isﾠthe quietest, best shifting, aerodynamic derailleur cage design created to date.ﾠIt is a dawn of new era for rear derailleurs. HOLLOWcage OSPW has a carbon-polymer mono-plate construction with bespoke, oversized, full ceramic bearings and the most advanced silencing pulleys ever created.
Compatibility:
Shimano Dura Ace 9100 / 9150 / 9170 , Ultegra 8000 / 8050. Fits up to 32T cassette. NOT compatible with Ultegra long GS cage derailleurs..
