Da Groj

Is 200 tredwear the minimum for FAST street tire classes like SCCA?
I ask because I have Nitto NT01's that are 140TW but have less grip than the current "autocross tire".

This quote is from the Fast Stock Category Rules.

"Made it past all the “stock” qualifiers? Good, now let’s look at your tires. This is simple. If they are DOT approved and their treadwear rating is 140 or greater (check the sidewalls), we consider them street tires."

So it looks like you're good.

Thanks.

Of course, little be known that at most events - everyone in R1 gets a sticker!!!