I can't tell for sure what brand, but it's generic term is a 'Sprint Kart' made for racing on tracks with right & left turns. It's design features date it to being made sometime in the 80's / 90's. There were dozens of different brands made back then that all look fairly similar...
Looks like someone has welded the bumpers on, they originally would have both bolted on so they could be easily replaced. They also modded the nerf bars, adding the upper side-bars and metal plates. Nerf bar designs like that are more commonly used at Oval-kart tracks.
Does it have a 1" or 1-1/4" diameter axle, or is it a metric size?
Are you just curious about the brand? Because we could help you find parts that'll fit if that's what you really need
