Absolute Black HollowCage Carbon Ceramic Oversized Derailleur Pulley Cage - Shimano 9100/8000 Tubeless_Accessories Features new Vent Valve Technology

Features new Vent Valve Technology

It is the first mechanical system to meet our exacting standards

Alloy construction

in place and ready to protect

Absolute Black HollowCage Carbon Ceramic Oversized Derailleur Pulley Cage - Shimano 9100/8000 Tubeless_Accessories Features new Vent Valve TechnologyAbsolute Black HollowCage Carbon Ceramic Oversized Derailleur Pulley Cage Shimano 9100 8000 HOLLOWcage for Shimano 9100 8000. Absolute Black's revolutionary mono plate OSPW design is the quietest, best shifting, aerodynamic derailleur cage design created to date. It 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