The RAM-B-149Z-GOP1U consists of a zinc coated u-bolt base, standard size double socket arm and 1" diameter ball with custom GoPro Hero adapter. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allows for almost infinite adjustment and perfect viewing angles. Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter. The base includes black cover caps to be placed over the exposed ends of the u-bolt. The included composite rail adapter can narrow the rail to a minimum width of 0.5".

GoPro Mount Arm Design:
The RAM-B-201 RAM Mount Marine Grade Aluminum Dual Socket Arm is a 1 inch B size Ball Socket Arm with open socket ends. The arm is 3.0 inches long between socket centers and is finished with a Black Powder Coating. The side of the arm includes a tightening knob which allows you to open and close the socket ends. 

GoPro Mount Base Design:
The RAM-B-231Z RAM Mount Powder Coated Marine Grade Aluminum Rail Base has a 1.0 inch diameter Rubber Ball designed to sit at right angles to the mounting rail. The Zinc Coated metal U-Bolt and nuts included are designed it fit on most motorcycle round handlebars, or any circular rail or pipe with diameter from 3/4 to 1.0 inch.

To mount the rail base, place the top of the base on the rail and then slide the u-bolt around the rail, into the holes in the base top. Now tighten the screws onto the u-bolt until the base is clamped firmly. If you desire, you can now slot the black rubber covers over the exposed ends of the u-bolt.