RollerBoys equipped with low friction ceramic bearings for ultra-smooth glide and exceptional durability. Lubricated with special ceramic light oil for extra smoothness. Composite material provided by EMS Swiss, with 40% glass-fiber. Complete set of bushings for different shifting systems included. Compatible with Shimano 9 and 10-speed / Mega Range and Campagnolo 11 speed.
Included in delivery: 1 pair incl. complete set of bushings for different shifting systems