absoluteBLACK Hollowcage Shimano 9250 Dura Ace Carbon Ceramic Oversized derailleur pulley cage Color:GOLD Improve your current stock drivetrain

Improve your current stock drivetrain or even your current competing Oversize System with the installation of an SLF Motion Speed System

now optimized for every rider

Breathable and moisture-wicking fabrics will keep you cool and dry despite the heat

carefully considered beam angles

ADJUSTABLE FOLDING NOSE PIECE

absoluteBLACK Hollowcage Shimano 9250 Dura Ace Carbon Ceramic Oversized derailleur pulley cage Color:GOLD Improve your current stock drivetrainabsoluteBLACK Hollowcage Shimano 9250 Carbon Ceramic Oversized derailleur pulley cage HOLLOWcage for Shimano Dura ace 9200 12spd. Our revolutionary mono plate oversized pulley wheel (in short OSPW) design is the quietest and best shifting, oversized derailleur cage for Shimano 12spd created to date. HOLLOWcage OSPW has a carbon polymer mono plate construction with bespoke, oversized, full ceramic bearings and the most advanced silencing pulleys ever