Originally Posted by waistofhumanspace
I tried using a new wallymart bike & it cracked apart within a few weeks, I welded it over & over again! This was no easy task with such thin metal tubing, I have see thicker metal used to make soup cans. ( old bikes are best )
I'm currently modifying a Micargi frame, doing a lot of welding, and have found it handles welding no problem, so the metal must be thicker than some at least. Still not a high quality bike, but a step up maybe?