Has anyone had experience with running 235/35 19 front and 265/30 19 Cups on the Cayman S? OD of the rear tire is reduced an inch from stock and I am unaware if it will cause any trouble on the track. I am assuming it will be driven with the traction controll turned off on the track.

Can those in the know please reply. I have a customer considering the tires and I don't want to sell them if they won't work.

Thanks.

 

Fred really wanted to know the answer to this too guys!

 

the closest to oem tires to run on track short of hoosiers is toyo RA1.
245 and 275. they are a lot less finicky than mpsc and not necessarily slower and you can drive them on street and last longer. i would run RA1 on my gt3 if i had right size.

i am no my 2nd set of RA1 on cayman. you have more than evnough grip wiht RA1 on stock caymans.

 

RA1's are great tires. Wish they had as many Porsche applications as they do BMW. Too bad TR doesn't sell Toyo's, I hope that could be fixed some day.