The Shimano Non-turn Washer 5L Brown is a small but essential component designed to keep your internal gear hub axle correctly aligned and secure in the dropout. Commonly used with Shimano Nexus and Alfine style hubs, this non-turn washer helps prevent the axle from rotating under load, ensuring smooth shifting performance and consistent chain tension. Its specific shape and keyed design lock into the frame’s dropout, providing a reliable interface between hub and frame that stands up to everyday riding, commuting, and utility use.
This brown 5L version is typically used on the left side and is color-coded to make correct installation easier when working with multiple washers and dropout standards. Whether you are replacing a worn or lost washer, building up a city or trekking bike with an internal gear hub, or simply refreshing your drivetrain hardware, this genuine Shimano part helps maintain safe, predictable operation. By using the correct non-turn washer, you protect your hub, improve shifting accuracy, and extend the life of your entire drivetrain system.