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      05-16-2020, 04:24 PM   #1
canadaeh89
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Tire Swap

Hey guys,

I have a 2018 BMW M2.

1) Just swapped on my summer tires and I have a set of Michelin PSS 255R19 in the front and 275R19 in the rear. I am wondering if anyone here has similar set up and if so what tire pressure are you guys running it at?

2) I am also noting what I think could be rubbing only when applying brakes. I just assumed if it was rubbing, wouldn't it be present all the time? Before installing I had read this size set-up should not cause any issues, am I missing something?

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      05-16-2020, 05:40 PM   #2
wanofakind01
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Shouldn't rub, I run 255/275 lowered on v3's. Have tried this setup on the track as well and no concerns with compression. If you're on stock there should be plenty of clearance.
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      05-16-2020, 06:43 PM   #3
DanG
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You should run 35 psi all around.
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      05-16-2020, 10:56 PM   #4
Anthony1s
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I'm running the same, but lowered on coilovers. No rubbing.

My tire pressures fluctuate with weather temperature. I setup 2psi more in the front, because I want more rear grip and understeer. In this weather, it's 35psi front and 33psi rear. Last summer I was running 30psi all around, but bumped it up this summer to see if it'd increase tire life.

From my experience 1psi is equal to 10F. Meaning for every 10 degrees hotter the outside temp is, my tires, at rest, will increase 1psi due to the heat change.
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