Review on Zonkie Mounting Stroller Silicone Available by Johnny Black

I bought this because my new e-bike doesn't have bottle cage mounts. I tied it to the front seat post as tightly as I could. It looks like it works great but every time I get on or off the bike it slides to the side. This is mainly because I have a thru bike and there isn't much room to thru. When starting, it can be a pain to twist it into position while driving. If you don't take a step forward, I think this works perfectly and stays in place even with a large water bottle.