CDJ big pulley kit 11 speed R91xx R80xx SV/Shimano series/full ceramic/matte

Big pulley kit for Shimano 11-speed rear derailleur / full ceramic bearing / pulley cage matte clear (no gloss) Compatible models / SHIMANO RD-R9150 / RD-R9100 / RD-R8050(SS/GS) / RD-R8000(SS/GS) *Derailleur body is not included. In addition, chain length adjustment and RD gear shift adjustment are required for installation. *Assembling involves derailleur removal and adjustment work, and requires specialized skills. Please contact your nearest cycle shop or our company.