Michelin PSS 245/35/20 and 285/30/20 "K1" Ferrari Spec vs Normal

Ftenner · 05-27-2012, 10:09 PM

Quote:

Originally Posted by Alan l.

Here is my new setup. 245/35/20 K1 spec PSS on the left and 285/30/20 non K1 tire on the right. You can see how the shape of the sidewall is slightly more round on the K1 tire.

Thanks for posting your setup!!, most likely I'll be doing the same thing when I get my wheels, thanks

Park828 · 05-29-2012, 03:18 PM

i have the morr v8.2 20s... and i used 255/35/20 285/30/20 standard setup and its great. not sure why you guys want such a narrow tire in the front... bigger size gap will just make the car understeer more.

Alan l. · 05-29-2012, 03:58 PM

^^ its because of the Xdrive system. 245/285 has a identical rolling diameter for the front and rear tires which is important for the AWD system.

If i had a RWD 535 i would have gotten 255 up front for sure.

Alan

Park828 · 05-29-2012, 05:07 PM

opps sorry i must have missed xdrive bit

Ftenner · 07-27-2012, 05:28 PM

Sorry i think i had asked this before? I'm about to purchase my tires this week, just want to make sure. So what will be the problem if I buy 255 instead of 245?(fronts) If the rolling diameter has a difference in an AWD, so will this damage anything? Is the difference big enough that may damage anything?

Alan l. · 07-27-2012, 05:57 PM

Nobody knows for sure. All I know is that with xdrive you want the front and rear overall diameter to be the same or as close as possible.

Alan

Stealth7 · 07-27-2012, 06:36 PM

FWIW, Costco will sell these tires, install and balance them, for about $1,300, tax included. Amazing!

While they do not have the Hunter-force balancing machine, they have very new equipment.

Alan l. · 07-27-2012, 09:16 PM

costco carries Michelin PSS??? Damn i paid way more than 1300 at Tirerack!

Alan

Alan l. · 08-02-2012, 08:20 AM

Non K1 rear tire mounted on a 20x10" wheel 285/30/20
K1 front tire mounted on a 20x9" wheel 245/35/20

Alan

Ftenner · 08-02-2012, 02:57 PM

Wow, very nice allan!!!, can't wait for my wheels to come!!! Looks perfect!!! The second wheel on the pic is your fronts? Very nice, cmmon andy!!! Where are my wheels? Lol, hopefully next week pls......!!!! But very nice allan!!! Where did you mount and balance it?

Alan l. · 08-02-2012, 08:58 PM

Yep. first two wheels are the front and the one closes to the camera is the rear wheel. Hopefully getting my F10 in the next couple of days so i can finally put on all of my mods!

Alan

Ftenner · 08-08-2012, 03:53 PM

Allan I sent you a pm, thanks

Ftenner · 08-08-2012, 04:21 PM

Got your reply!!! Thanks

Ftenner · 09-06-2012, 12:01 PM

What are the recommended tire pressure for the fronts and rears for this wheel setup?

05-29-2012, 03:18 PM	#24
Park828 Banned 35 Rep 552 Posts Drives: Man Join Date: Feb 2007 Location: Usa iTrader: (3)	i have the morr v8.2 20s... and i used 255/35/20 285/30/20 standard setup and its great. not sure why you guys want such a narrow tire in the front... bigger size gap will just make the car understeer more.
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05-29-2012, 03:58 PM	#25
Alan l. Major General 6693 Rep 9,485 Posts Drives: 2026 M5 Touring Join Date: Jun 2009 Location: United States iTrader: (9)	^^ its because of the Xdrive system. 245/285 has a identical rolling diameter for the front and rear tires which is important for the AWD system. If i had a RWD 535 i would have gotten 255 up front for sure. Alan __________________
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05-29-2012, 05:07 PM	#26
Park828 Banned 35 Rep 552 Posts Drives: Man Join Date: Feb 2007 Location: Usa iTrader: (3)	opps sorry i must have missed xdrive bit
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07-27-2012, 05:28 PM	#27
Ftenner Private First Class 28 Rep 113 Posts Drives: F10 535xdrive , F15 xdrive Join Date: Jul 2011 Location: Nj iTrader: (0)	245 vs 255 Sorry i think i had asked this before? I'm about to purchase my tires this week, just want to make sure. So what will be the problem if I buy 255 instead of 245?(fronts) If the rolling diameter has a difference in an AWD, so will this damage anything? Is the difference big enough that may damage anything?
	Appreciate 0 Quote

07-27-2012, 05:57 PM	#28
Alan l. Major General 6693 Rep 9,485 Posts Drives: 2026 M5 Touring Join Date: Jun 2009 Location: United States iTrader: (9)	Nobody knows for sure. All I know is that with xdrive you want the front and rear overall diameter to be the same or as close as possible. Alan __________________
	Appreciate 0 Quote

07-27-2012, 06:36 PM	#29
Stealth7 Lieutenant 213 Rep 503 Posts Drives: No BMWs Right Now! Join Date: Apr 2012 Location: SoCal iTrader: (0)	FWIW, Costco will sell these tires, install and balance them, for about $1,300, tax included. Amazing! While they do not have the Hunter-force balancing machine, they have very new equipment.
	Appreciate 0 Quote

07-27-2012, 09:16 PM	#30
Alan l. Major General 6693 Rep 9,485 Posts Drives: 2026 M5 Touring Join Date: Jun 2009 Location: United States iTrader: (9)	costco carries Michelin PSS??? Damn i paid way more than 1300 at Tirerack! Alan __________________
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08-02-2012, 08:20 AM	#31
Alan l. Major General 6693 Rep 9,485 Posts Drives: 2026 M5 Touring Join Date: Jun 2009 Location: United States iTrader: (9)	Non K1 rear tire mounted on a 20x10" wheel 285/30/20 K1 front tire mounted on a 20x9" wheel 245/35/20 Alan __________________
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08-02-2012, 02:57 PM	#32
Ftenner Private First Class 28 Rep 113 Posts Drives: F10 535xdrive , F15 xdrive Join Date: Jul 2011 Location: Nj iTrader: (0)	Wow, very nice allan!!!, can't wait for my wheels to come!!! Looks perfect!!! The second wheel on the pic is your fronts? Very nice, cmmon andy!!! Where are my wheels? Lol, hopefully next week pls......!!!! But very nice allan!!! Where did you mount and balance it?
	Appreciate 0 Quote

08-02-2012, 08:58 PM	#33
Alan l. Major General 6693 Rep 9,485 Posts Drives: 2026 M5 Touring Join Date: Jun 2009 Location: United States iTrader: (9)	Yep. first two wheels are the front and the one closes to the camera is the rear wheel. Hopefully getting my F10 in the next couple of days so i can finally put on all of my mods! Alan __________________
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08-08-2012, 03:53 PM	#34
Ftenner Private First Class 28 Rep 113 Posts Drives: F10 535xdrive , F15 xdrive Join Date: Jul 2011 Location: Nj iTrader: (0)	Allan I sent you a pm, thanks
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08-08-2012, 04:21 PM	#35
Ftenner Private First Class 28 Rep 113 Posts Drives: F10 535xdrive , F15 xdrive Join Date: Jul 2011 Location: Nj iTrader: (0)	Got your reply!!! Thanks
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09-06-2012, 12:01 PM	#36
Ftenner Private First Class 28 Rep 113 Posts Drives: F10 535xdrive , F15 xdrive Join Date: Jul 2011 Location: Nj iTrader: (0)	Tire pressure What are the recommended tire pressure for the fronts and rears for this wheel setup?
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