That would seem a bit odd, and probably not the best. I could see that acting similarly to a rear bumper with tight bolts. I think I’d try to spread it a bit, one way or another, so it fits on the bushings easily.
i got the kart second hand, and the bumper has been modified for whatever reason unknown to me, but there is a weld near one of the ‘posts’, or uprights that connects the hoop to the mount. it was probably shortened, from the looks of it
would it be worth trying to fix, or should i just get a new one? I don’t plan on running plastic FWIW