This Quick-Racl rear luggage carrier features a quick-release system for fast mounting and dismounting. It allows direct attachment of bags with QL1/2/2.1/2.2 or Top-Lock systems, and includes QL3/3.1 mounting elements that can be added. Includes mounting kit for mounting on frame luggage carrier threads An adapter quick-release axle is necessary for mounting on the axle: sold separately Suitable for bikes with a maximum tire size of 29"/2.6" when mounted via an adapter axle Horizontal and vertical struts with 12 mm tube diameter