BBB - ROLLERBOYS CERAMIC PULLEYS
Ceramic bearings for ultra-smooth gliding and almost no resistance. Other brand pulleys have no bearings inside. Composite material provided by EMS Swiss, with 40% glass-fiber mixture giving unmatched stiffness and precise shifting. All bushings for different shifting systems are included.
BDP-11: 10T. Compatible with Shimano 7 and 8 speed; Campagnolo 8, 9 and 10 speed; Sram-ESP up to 2004.