Description

BBB RollerBoys Ceramic Jockey Wheels Gear Pulleys 11T Black – BDP-12 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. Ceramic bearings. 11T Compatible with Shimano 9 and 10-speed / Mega Range and Campagnolo 11 speed.