Originally Posted by nitro2be

My new BSR tires are 46 to 47 mm. I understand 43 is the desired size. I'm working on set up and want to hit track with car at the best I can get to start. I noticed it changes roll out from 40 to 43. Should I just run tires new at full size or true down to 43? Will i even notice being new to onroad ?How many packs would it take burn off a mm of foam? Does someone at Tq true tires for a fee?

Thanks in advance I know these are basic questions for you guys.