I have one of these on each of my 3 bikes which allows me to have one Varia light which I can quickly and easily attach to the one that I choose to ride. It makes for a compact arrangement for both light and computer and the light doesn't take up additional space on the handlebars. One drawback would be if there is no round place on the handlebars to attach the mount such as on some of the one-piece aero handlebarstem combinations.
This particular Out Front Mount has literally saved my life at least once. I live on the island of Oahu in Hawaii. As such, there is not a lot of "less traveled" roads to choose from when riding. This mount holds my Garmin computer and my Varia UT 800 headlight underneath the computer. I have had so many close encounters with cars that I had moved indoors for training purposes to survive. My worst near miss was with a UPS van who looked in the other direction first and began driving out into my path. He saw the light (literally and figuratively) and hit his brakes to prevent turning me into a hood ornament. I never go out riding on the roads without it anymore. Without that dual mount bracket I would not be here to write this review today. Another plus is the fact that it helps to alleviate crowded conditions on my handlebars.
use this mount for my garmin radar monitor on flat bar bike. Very secure providing excellent positioning for viewing while keeping your eyes on the road. Quick detach 1/4 turn works great to take monitor with you when leaving bike unattended or for charging. Took one star off because it is a little pricey in my opinion.
This is a good Garmin computer mount that allows quick & easy attachment of a Garmin Varia light underneath the computer. By having these mounts on several bicycles, it allows the use of one light to be available for all of the bikes. The only disadvantage is that lights other than Garmin may not be adaptable.