Originally Posted by
WhyFi
For bars with a conventional stem, I've been using this inexpensive one that I got on Amazon -
https://www.amazon.com/gp/product/B07SSXGZ1H I've got it holding a Cycliq Fly12, which is a pretty heavy light/camera combo.
Edit - this is it with my EC70s -

So this arrived and it will do the job, but I was taken aback by its weight. 50 grams or so. I'm not sure why it has to be so solid - I guess machining costs would be greater for a less-weighty design.