I had a coldshoe mount with a 1/4-20 stud on the end so I decided to utilize it.
I pulled off the top handle bar grip and then removed the cap from the front. Drilled into the center to fit my mount and had to grind down the coldshoe mount into a small circle. WALA!
The dji logo rotates, so you may want to put some epoxy on the inside to prevent that.