Stainless steel cartridge bearings with low friction seals for reduced dragCNC machined from 2014 T6 aluminiumLabyrinth style spacers encapsulating / protecting the bearings, increasing product life and reducing maintenanceLightweight yet robust designAvailable in our 6 standard coloursWill fit most Shimano 12 Speed rear mechsNote: Does NOT come with any Screws/Pins
