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The summer tires I have are Michelin Pilot Sports. Not the Sport Cup. Treadwear of 220. The last autocross we had was a slow drizzle and the track was soaked. I was astonished how much grip they had in the rain. Once they heat up on a dry day they have orders of magnitude more traction than the best of the 15 inch tires I ever had. Partly because they are lots wider. The 225 in the front are what I used to have in the rear. I have 255s in the rears now. That is a lot more rubber. The perfectly fill the fenders.
The profile of the tire is shorter and the overall diameter of the tire is perfect. 225/45/17 front and 255/40/17 rear are along way from 195/65/15 and 215/60/15s.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
Last edited by GH85Carrera; 01-31-2019 at 08:23 AM..
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