Allen Tension Bar Bicycle Cross-Bar Adaptor

Very handy item for multiple bikes on a rack. Keeps from having one bike tilted at an awkward position from the other(s). Very easy to use, just be careful as the spring tension can fool you and you can get a finger pinched. It only took one pinch and now I can set the bikes up like a pro. The Allen® bicycle adaptor bar quickly snaps in place on most bicycles to add a top-tube so that the bicycle can be carried on a bike rack.