Would you put 13" slicks on 10" rims?

famous bob said

a narrower rim will suck the sidewalls in, and likely try to roll the outside edges of the tire, giving less footprint.:wack:

Click to expand...

On paper.
In reality , the narrower rim draws the bead in and bulges out the rest of the side wall.
This creates a rounder , wider sidewall......drawing the edges of the tread upward.
The " section width " will be greater with a narrower rim , but it doesn't allow for a full foot print.