2-piece aluminum fork mount clamp for an easy install. 

Comes with 5/16-24 threaded bolt that is installed to the, un-threaded body, by a counter locking nut. 

Most 5/16-24 threaded turn signals or other accessories can be installed after which, due to the two-piece design, the clamp can be mounted to the fork tube without fork tube removal. 

Great for use with turn signals or auxiliary lights.