BBB RollerBoys Derailleur Pulleys 10T (BDP-01 )

Replacement derailleur pulleys designed to deliver smooth, quick shifting performance. Constructed from a strong, durable composite material with a 40%glass-fiber mixture, these pulleys use a special teeth pattern to ensure rapid gear changes. They are widely compatible, including with Campagnolo, Shimano, and SRAM 7- through 10-speed systems.