Got inspired by a project guide for a drift trike, and I need some help identifying a component.
Specifically, the section of framing encircled in red. I can tell it’s some kind of coated steel tubestock, but I don’t have enough prior welding or mechanical experience to figure out what the blasted thing that shape is CALLED to look one up.
It looks too smooth too have been reshaped, so I think it was purpose-built for something else? The plate I’m not concerned about.
The full guide in question.
Any signal boost or advice is appreciated. Thank you.
Picture of my electric drift trike at present. The immediate use for that extension will be a little bit of a cargo area for a basket.