I will need a new set of rubber after that saturday, I have one more day on the rear and gonna move up to a slick. Currently running metzeler racetech rr's and was looking at the tire service and was thinking about trying the cup evo slick, but its only showing 190/55 and 200 rear. Do they not carry a 180 rear? My rear that I have now is a 180/60 and it works pretty good for me. Any info would be appreciated.