Upgrade your drivetrain with this 18T Hollow Oversized Derailleur Pulley Wheel, designed for smooth, responsive shifting and efficient chain engagement. Made from lightweight aluminum alloy with a full ceramic bearing, it weighs about 28g and features deep teeth for secure chain grip and quiet rotation. The anodized finish helps resist rust, oxidation, and everyday wear. Suitable for compatible 9-speed, 10-speed, and 11-speed systems, including selected Shimano R8000/R7000 setups. Not suitable for long-cage derailleurs—check compatibility before installation.
