These license plate brackets are a great accessory for giving your ride a custom look. They are not only useful, but the chrome finish on them shines like a mirror. They are designed to fit all standard motorcycle license plates and you can easily attach a tail light to the top of them (included). Bracket Mounting Hole Size: 1/2 inch (13mm). Side mount license plate mounts can be mounted on the rear axle, shock bolt, and anywhere else on the bike that takes 1/2 inch (13mm) mounting. A chrome plated, Red, Run/Tail Light is also included! We are so confident of our quality, that we even offer a 100% Money Back Guarantee! No questions asked!