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      10-12-2011, 07:02 AM   #1
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Changing tires. Opinions wanted.

I am going to change out the miserable Continental Contisport tires that came on my '11 M3 ZCP. They will be replaced with Michelin PS2. My question is related to sizing:

Option #1:
Stay with stock sized tires. Going to the better tires will be enough to give me the much needed added grip.

Option #2:
255/35 front and 275/35 rear. Slightly more rubber all around. Maintains the F/R size differential, but the 255's are 2 lbs heavier each than the 245's.

Option #3:
Stay with 245/35 front and go to 285/30 rear. This will maximize rear grip while giving identical front/rear rolling diameter. The 2% decrease in rear diameter shouldn't affect DSC too much and make driving without DSC much more enjoyable.

Right now, I am running 12mm spacers all around. I would keep these in front. I am not sure whether I could fit the rear 275's with the spacers and if I got the 285's, the rear spacers would obviuosly need to go.

Any and all input appreciated. Thanks.
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Last edited by LarThaL; 10-12-2011 at 01:10 PM.
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      10-12-2011, 07:49 AM   #2
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I like option #2. DSC operation will remain unchanged. If you never drive in the rain or snow and always drive with DSC off, then the effect on DSC does not matter. As for heavier tires, both options 2 and 3 make the tires heavier. Michelins are pretty light as tires go -- look at even higher performance tires like Advan 08s and you will see they are heavier for the same size. I would buy PSS over PS2 if available in the sizes you want. The only option I don't like is #1.
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      10-12-2011, 09:23 AM   #3
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I think the PSS is available in the 275/255 configuration. I have a set of PSS in 275/35-18, and they are great tires.
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      10-12-2011, 09:38 AM   #4
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255/275 PSS is a great combination as others have said.

Test with spacers of course and see what works and what you like "looks wise"...
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      10-12-2011, 10:41 AM   #5
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Dont get PS2s! Not that PS2s are bad, I actually really liked mine. However, all reports and reviews say that PSSs are better and cheaper! I just ordered a set of PSSs to replace my stock PS2s. I cant wait to try them out. I had to order slightly larger sizes in PSSs since the stock 265&245s were sold out so I opted for 275&255s. A little extra lip coverage never hurt lol.

Fyi, Michelin has a special going on until the 22nd where if you order four Michelin tires then you get a 70$ prepaid Visa back.
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      10-12-2011, 06:02 PM   #6
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PSSs. 255/275.

PS2s are fantastic but have always been overpriced.
PSSs are supposed to outperform them at a cheaper price (as the previous member stated)!
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      10-13-2011, 03:16 PM   #7
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I agree with everyone that 255/275 is a great tire combo for street and track.
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      10-13-2011, 07:44 PM   #8
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Replaced stock ps2 with 255/275 pss and the new set up is far superior.
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