HOLLOWcage Oversized Derailleur Pulley Cage for Shimano Ultegra 8150 Elite sunblock just adds another ingredient

sunblock just adds another ingredient to the recipe for temporary blindness and discomfort

Go further - reduce fatigue from bumps and vibrations

smooth block-in-block transition knobs provide grip and support through turns

Made from 6061-T6 Aluminum

HOLLOWcage Oversized Derailleur Pulley Cage for Shimano Ultegra 8150 Elite sunblock just adds another ingredientThe absoluteBLACK's HOLLOWcage for Shimano Ultegra 8150 12 speed derailleurs makes the 8150 drivetrain whisper quiet. It features a carbon polymer mono plate construction with bespoke, oversized, full ceramic bearings and one of the most advanced silencing pulleys ever made. Designed for use with Shimano Ultegra 8150 drivetrains Fits up to a 34t cassette The Silent Xring Pulley dampens the chain impact on the guide pulley teeth, eliminating the