RAM Handlebar U-Bolt Base for Rails 0.5" to 1" Diameter The AV-2 features two Line-In/Out

The AV-2 features two Line-In/Out channels

You can even mount two GoPro's on the arm

connected to a 1/4"-20 camera thread

2x Three-way pivoting arms

The RAM-HOL-UN8BU consists of a spring loaded cradle and 1" rubber ball connected to the back of the base

RAM Handlebar U-Bolt Base for Rails 0.5" to 1" Diameter The AV-2 features two Line-In/OutThe RAM motorcycle handlebar base contains a 1" rubber ball designed to sit at right angles to the mounting rail. The rust proof metal u bolt accommodates rails in diameter from 0. 5" to 1" in diameter. Included are black cover caps to be placed over the exposed ends of the u bolt and a composite adapter that can narrow the rail to a minimum width of 0. 5".