Super sercure mount
I'll be honest at first I was like you're kidding me that a mount for a gopro was going to run me $50. But after using it I tossed the old (plastic) mount in the trash. This thing doesn't move at all and matched up perfect to 31.8 bars. I was very surprised with how stable and quiet it is compared to the old option which would wiggle loose every time I tried to ride with it. My only gripe is the price.