Should you drag race with a 30" wheel the answer is yes you should if your axle is made for drag racing. My buddies race car has a 32" diameter slick probably same overall diameter as that 30" wheel with a elastic band tire and I doubt it will ever break an axle. Can't really fault the wheel for that breaking its the stock rear end thats to blame. the thing I find funny is that people put 30" wheels on a piece of crap car (donk as they call them) and think it looks good.