Review on 🚲 Topeak Versa Bike Mount (Set of 2), Black, Adjustable from 20mm to 60mm by Bob Vulpes

I received this to fit a battery pack to my beach cruiser as part of an e-bike conversion. This fastener is basically held in place with a plastic strap, and if you overtighten the screw, the grooves will stretch and the screw will slip off. So it breaks out and then gravity tries to flip the battery. I ended up cutting off the straps and used zip ties. They held on but they broke. I think a couple of metal zip ties could secure the thing, but I don't. The battery is probably too heavy for it, but a full water bottle might also be too big.