Seriously? Gonna do a 'derby huh? Post pics of the derby car man!
But don't you think a skinny, low profile tire like that is a bad idea? You make a hard turn in dirt and you're gonna blow the bead instantly. Skinny tire is gonna dig down in dirt too.
I'd rather run bald 31" truck tires with inner tubes than donut spares..........
Here ya go, been driving derby cars for a few years, kinda took a break but getting back into it a little.
Want to run the donut spares on the front so it's harder to hit the wheel and break steering componets and frame rails are bent pretty bad on this car so it will give me some more crush room. I know the donut is on back now but will be moving it to the front.