Shimano Nexus/Alfine Horizontal Dropout Non-turn Washer Description: The Shimano Nexus/Alfine Horizontal Dropout Non-turn Washer is a factory part essential for the proper function of Shimano's internally geared rear hubs. The serrated washers are angled precisely to hold the internally geared hubs in one position in the rear dropouts so the braking and shifting is optimized. Features: Includes one part number Y33M39700 (7R Black) for 38 degree horizontal dropouts Fits Shimano Nexus and Alfine hubs Sold individually