Abstract: A helmet locking device that allows a rider to securely lock the helmet to a supporting structure, such as a motorcycle. The device includes a mounting bracket configured to conform to and fit around a tubular structure on the motorcycle. The device also includes an anchoring member that is mounted on to the helmet. The mounting bracket and the anchoring member include elements that allow them to be slidably coupled to each other and secured by a locking element thus preventing the removal and theft of the helmet.

Abstract: The present invention is directed to an adjustable motorcycle backrest assembly that allows adjustment of the height and tilt of a backrest. The assembly includes a mounting bracket configured to conform to and fit between the driver's seat and the front edge of a passenger's seat. The height and tilt adjustable portion of the assembly slides into the mounting bracket and includes the means to slide the adjustable assembly upward and downward. A hinged clamp positioned at the top of the sliding assembly along with a tilting bracket provide the mechanism to adjust the tilt of the backrest. Loosening and tightening of a single bolt allows adjustment of both the height and tilt of the motorcycle backrest.