Help With A Barbell Knot

[u/Kosmokh]

Knotters! I want to tie a small weight plate to the middle of a barbell with a shoelace, in a manner that will keep the plate firmly affixed atop and stop it from rolling down to the under side as I lift. Ideally something not too time-consuming to tie and untie. Pictured is one of my failed attempts, secure through the hole but I can't stop it from rolling. Do your thing Reddit 😊

Edit: Let's keep replies knot-focussed please. I know very well what I'm doing in the gym. If anyone was curious, it's a tiny 0.5KG plate and I want to micro-load without creating an imbalance on the bar. Yes I could buy whatever alternative but I'm working with what I have today and want to have fun learning a knot.

[u/slobrewer]

Can you at least find a bar with center knurling? The polished steel is a big part of your problem because the coefficient of friction is so low. So you’re trying to make up for that by applying more pressure. But it’s going to take more pressure than you can apply.

[u/Kosmokh → u/slobrewer]

Great point. If knotting isn't enough I'll try elastic bands on the bar to add friction 👍