BBB RollerBoys Jockey Wheels BDP-02 11T

BBB RollerBoys 11 tooth replacement rear derailleur gear jockey / pulley wheels. Compatible with Shimano 9, 10 and 11-speed / Mega Range, SRAM X0/X9/X7, Apex, Rival, Force and Red (> 2011) and Campagnolo 11-speed.