Originally Posted by
Bald Paul
Okay, I think I know what you bought. I modified two sets of them to mount an external battery pack for my GoPro with the GoPro mounted to the battery. Both handlebars and battery are the same diameter, give or take a few tenths of a mm.
What is the diameter of your handlebar? I don't use any plastic or rubber inserts on mine and it clamps down tightly.
I'd have to measure but I'm pretty sure when I installed it originally that the inserts fell out once while I was tightening it and it didn't clamp tight without something put in there. When I take it apart to take off the gaff tape I can try. Thanks! Appreciate the reply.