Key features and benefits - Standing design bicycle body A standing design bicycle body is included as the main platform for this accessory, providing a dedicated unit for compatible setups. - Disc component and running body The assembly incorporates a disc element and a running body component to enable integrated operation within compatible systems. - Middle section hub axle compatibility Designed to fit the middle part of hub axles, offering a reliable fit for bicycles that use this axle arrangement. - 11 speed gear system Equipped with an 11 speed gear system to support a wide gear range and smooth shifting where 11 speed drivetrains are used. - 12 mm size specification Built to a 12 mm specification, ensuring correct sizing for compatible hubs and axles. Use scenarios - Scenario 1: Upgrading an 11-speed bicycle with a mid-section hub axle Use this accessory to upgrade or refresh a bicycle that uses a middle hub axle and 12 mm components, enabling continued compatibility with an 11 speed drivetrain. - Scenario 2: Installing on a standing design frame When working with a bicycle that employs a standing design body, this component provides a suitable platform with a disc element and running body for integration into the drivetrain and hub area. - Scenario 3: Maintenance or replacement in a 12 mm system For bikes requiring a 12 mm specification, this part offers a compatible option to maintain or restore hub and axle performance within an 11 speed configuration.