[Nate4641]

I'm looking to get some stickier tires to mount on my stock M wheels since they aren't doing me any good at the moment, but I'm not sure what brand or size to go with. I looked on Tire Rack and couldn't find anything in the stock size, which I assume is pretty important for engineering reasons, so I'm asking for some advice. I know the stock wheels aren't the lightest which is a good thing for the track, but I'm not worried about that at the moment. I'm also not worried about road use either since I plan on swaping them at the event. I tried searching, but couldn't find anything for these wheels. What would be a good R comp tire to put on stock M wheels and in what sizes?