Fly12 comes with a universal handlebar mount out of the box. It is designed for bars that are 31.8mm.
If you have a bike computer and want to declutter your handlebars, you can mount your computer and Fly12 with Cycliq Duo Mount.
There are also a large number of after market mounts that will work on TT bars, Aero bars etc. Anywhere a GoPro style mount can be mounted, Fly12 can also fit.