Extralite, CyberRear, Free Hub.

All you need to switch between Shimano R 11s, Sram XD/XDR-drive and Campagnolo 11s Standards or to replace a worn out free wheel.

CyberRear free wheel mechanisms are suitable for road and cyclocross use (and not MTB). Minimum 1:1 gear ratio. Shorter ratios may result in high torque and damage free wheel mechanism.

Includes 5ml of original Alugrease Super 1.