XI Tire Tread matter?

arlingtonassasin · 04-07-2014, 07:40 AM

Guys, Ive seen some threads on here regarding running different tread depths on the XI's. Mostly regarding the tolerance the system has for a new or used tire added to the set that may be at a different wear level. I recently got a great deal on two Front Michelin Pilot PS2 (non RFT) and two Rear Michelin Pilot Super Sports. (Its a staggered set up, 225/40/18 FR, 255/35/18 rear). Anyone see a potential issue running the brand new PS2's front and the Super sports (also brand new) in the back? Thanks

MGT81 · 04-07-2014, 07:48 AM

I would run the same tires on all four wheels. The sizes are fine though. Same as the OEM sport package size.

kdbryce · 04-07-2014, 08:10 AM

I heard that it can mess up the transmission if you run different treads in the front and back, although I haven't actually heard of anyone having any problems.

I did run a staggered set up on my last AWD e92 and didn't experience any problems.

arlingtonassasin · 04-07-2014, 02:14 PM

I may have found a definitive answer. Im kind of in a bind because Michelin discontinued the non RFT PS2's in 255/35/18 (of course). So Im stuck having to put the closest possible thing on my rears of my staggered set up. Their recommendation as a replacement is the Super Sport. This chart tells me the difference is much less than the 1% window recommended window to avoid damage. Thoughts?

04-07-2014, 07:40 AM	#1
arlingtonassasin New Member 0 Rep 9 Posts Drives: 2008 BMW 335XI Join Date: Apr 2014 Location: Orangeville ON iTrader: (0)	XI Tire Tread matter? Guys, Ive seen some threads on here regarding running different tread depths on the XI's. Mostly regarding the tolerance the system has for a new or used tire added to the set that may be at a different wear level. I recently got a great deal on two Front Michelin Pilot PS2 (non RFT) and two Rear Michelin Pilot Super Sports. (Its a staggered set up, 225/40/18 FR, 255/35/18 rear). Anyone see a potential issue running the brand new PS2's front and the Super sports (also brand new) in the back? Thanks
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04-07-2014, 07:48 AM	#2
MGT81 Lieutenant 101 Rep 535 Posts Drives: 335xi Join Date: Jun 2012 Location: Calgary iTrader: (0)	I would run the same tires on all four wheels. The sizes are fine though. Same as the OEM sport package size.
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04-07-2014, 08:10 AM	#3
kdbryce I have to return some video tapes 362 Rep 4,712 Posts Drives: e70 X5M Join Date: Apr 2011 Location: Albany, NY iTrader: (0)	I heard that it can mess up the transmission if you run different treads in the front and back, although I haven't actually heard of anyone having any problems. I did run a staggered set up on my last AWD e92 and didn't experience any problems. __________________ 13 Carbon Black e70 X5M - 13 Black Sapphire e92 335i - 10 Le Mans Blue e92 335i - 09 Monaco Blue e92 328i xdrive - 07 Sparkling Graphite e92 328xi
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04-07-2014, 02:14 PM	#4
arlingtonassasin New Member 0 Rep 9 Posts Drives: 2008 BMW 335XI Join Date: Apr 2014 Location: Orangeville ON iTrader: (0)	I may have found a definitive answer. Im kind of in a bind because Michelin discontinued the non RFT PS2's in 255/35/18 (of course). So Im stuck having to put the closest possible thing on my rears of my staggered set up. Their recommendation as a replacement is the Super Sport. This chart tells me the difference is much less than the 1% window recommended window to avoid damage. Thoughts?
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