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      12-20-2019, 08:08 AM   #15
Barry_S
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Drives: 2015 M5 F10
Join Date: Apr 2019
Location: Southern Indiana

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2015 BMW F10 M5  [0.00]
2018 BMW F15 X5  [0.00]
Quote:
Originally Posted by tampaturbom3 View Post
I have the 305/30/20 Michelin Pilot Cup 2's on the rear … amazed that they lasted this long (1.7 years) but they spin pretty bad (not as bad as the Pzero's that came on the car... that was like driving on sand)… I think that they may have heat cycled too many times... I do a burn out leaving my subdivision (at about 20-25mph) each day to warm them up... but they still don't have the stickiness I would expect...
since they are to the tread wear indicators (I've had the butt pucker effect for a while now when it's wet), I'm going for the PSS4's this time around (305/30/20). I wish that the 315/30/20's were available in the US as I would get that size instead.
on a similar note, it's about time to replace my PSS front tires (265/35/20) that are stock sized,,, is there really any benefit to doing 275/35/20? they are only $1 more so I was considering,,, but interested in opinions...
I'm wondering the same thing about changing out the front tire size when moving up to a 305 on the rear. If there isn't a reciprocal widening on the front to a 275, doesn't this alter the stance enough to negatively effect the handling of the car?

I'm curious how others have approached this when bumping up to the 305 on the rear. Any feedback from those that have done this?

Barry
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