What Our Gearhead(R) Experts Are Saying:"Swapping to these pulleys was an instant improvement in shifting crispness and drivetrain feel. The oversized lower pulley increases chain wrap, reducing wear and improving shifting precision. Paired with the Garbaruk RD cage, they allow for a wider cassette range without sacrificing performance. If you're looking for an upgrade that makes a noticeable difference, these are a must-have for your Shimano 11-speed setup."The Garbaruk Rear Derailleur Pulleys for Shimano are designed to enhance drivetrain efficiency, reduce friction, and improve shifting precision. Machined from 7075-series aluminum, these pulleys provide a lightweight yet durable upgrade for Shimano 11-speed rear derailleurs. The oversized lower pulley increases chain wrap, improving shifting smoothness and reducing drivetrain wear. When paired with the Garbaruk RD cage, these pulleys allow for wider cassette compatibility, making steep climbs and high-speed descents feel effortless. With an anodized finish available in multiple colors, they add both performance and custom style to any ride. For riders demanding seamless gear transitions, increased durability, and optimized efficiency, the Garbaruk Rear Derailleur Pulleys are an essential upgrade.