Milwaukee Twins Universal Helmet Lock Milwaukee Twins Motorcycle Helmet Lock is made to secure your helmet when you need to. Motorcycle helmets are expensive, and leaving your helmet on the seat or handlebar so the wind can knock it off, or so a thief can come and steal it is not a good idea. This motorcycle helmet lock will mount to a variety of motorcycle frame tubes between 7/8 to 1-1/4. It has a keyed lock that enables you to secure your helmet when you are not riding. Features: Comes with 2 keys Includes 3 sets of screws of different lengths to allow the lock to fit onto 7/8 to 1-1/4 round bars Screws are tamperproof and cannot be removed to prevent theft For use on any motorcycle