I have an aluminum road bicycle with a 1 inch diameter flat bar. I outfitted it with aftermarket aero bars, so there's not a whole lot of room to install a GPS mount, or at least when I do install something, the display isn't visible in the riding position. Nonetheless, this Garmin mount fits. Unfortunately, the polymer/rubber mount material doesn't grip the bar well enough and requires yanking on the zip-ties to get a really snug fit. Even then, it can still rotate with vibration and some force.That said, this allows an easy way for any GPS multi-sport watch to be mounted to a bicycle. I also have a Motorola Motoactv that fits on this mount kit with the watch band!What I'd change with this design is to make it slimmer and more narrow. My Forerunner 305 isn't exactly a slim watch, it is an odd shape that takes up some space, and this mount isn't the slimmest either.Overall: 5/5 stars, great value and an easy way to mount any GPS watch to your bicycle, not just a Garmin Forerunner.