The XuQiZZpp Bicycles Derailleur Pulley, crafted from high-quality aluminum alloy, is an indispensable component for your bike's rear derailleur. Constructed with precision and durability in mind, this part provides optimal engagement and smooth shifting. Its 11T gear ratio adapts seamlessly to various chainrings and cassette configurations, ensuring a seamless transition between sprockets. The smooth and silent operation of this derailleur pulley guide wheel part is a testament to its meticulous engineering, contributing to a more enjoyable and effortless cycling experience. Make your ride more efficient and enjoyable with the addition of the XuQiZZpp Bicycles Derailleur Pulley.