New michelin pss tires

carr88 · 06-04-2015, 11:14 AM

Getting ready to order some new michelin pss tires for z4 mr from tire rack. Stock sizes on stock wheels. For the front 225 size all they have are xl load, for the rear 255 all they have are standard load. Will this make a difference in handling,wear,etc. thanks for any help.

The HACK · 06-04-2015, 11:27 AM

The XL load ratings are designed to take a much higher weight per tire. That's all. There's little to no practical difference. Ideally, you'd want the load rating to be the same on all 4, but our cars are "relatively" light for those tire sizes it makes little to no difference.

There are more reinforcement in XL rated sidewalls to allow it to handle higher weight rating, so typically XL rated tires of the same size/make/model will right stiffer, but I doubt that'll be an issue with the PSS.

Finnegan · 06-04-2015, 01:29 PM

Love the PSS. A slightly stiffer sidewall won't be much of an issue.

For close to the same price as tires alone you could buy a set of Apex wheels with PSS tires. Or some practically new NT05s. Both easily fit a stock suspension or stock wheels. http://www.zpost.com/forums/showthread.php?t=1133201

M-ster · 06-04-2015, 02:16 PM

Quote:

Originally Posted by carr88

Getting ready to order some new michelin pss tires for z4 mr from tire rack. Stock sizes on stock wheels. For the front 225 size all they have are xl load, for the rear 255 all they have are standard load. Will this make a difference in handling,wear,etc. thanks for any help.

I have recently gone with the same set-up on my ///M roadster, except XL all the way 'round. I really only have the stock Conti to compare with on this vehicle, but the PSS have better grip and handling dry and wet. They are only marginally stiffer, but in a good way.

dubsesd · 06-04-2015, 08:07 PM

I have xl both front and rear in 19" and the ride is great. Actually better to have the xl up front for braking.

dekaliber · 06-13-2015, 02:06 PM

I just installed a set of PSS on my Z4MC a couple of weeks ago and have been happy with them. I run aftermarket wheels so I went 245/40 front and 275/35 back.

They are noticeably quieter and softer than the Nitto NT-05s I had before (expected), but a minor compromise the profile is less square and aggressive looking. Haven't taken the car autocrossing/track yet but so far does not appear to have compromised much on the handling.

As others have said I don't think you'll have an issue with the load ratings.

06-04-2015, 11:14 AM	#1
carr88 New Member 2 Rep 23 Posts Drives: 2008 z4 m roadster and 13 e92 Join Date: May 2013 Location: virginia iTrader: (0)	New michelin pss tires Getting ready to order some new michelin pss tires for z4 mr from tire rack. Stock sizes on stock wheels. For the front 225 size all they have are xl load, for the rear 255 all they have are standard load. Will this make a difference in handling,wear,etc. thanks for any help.
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06-04-2015, 11:27 AM	#2
The HACK Midlife Crises Racing Silent but Deadly Class 1820 Rep 5,337 Posts Drives: 2006 MZ4C, 2021 Tesla Model 3 Join Date: Oct 2007 Location: Welcome to Jamaica have a nice day iTrader: (1)	The XL load ratings are designed to take a much higher weight per tire. That's all. There's little to no practical difference. Ideally, you'd want the load rating to be the same on all 4, but our cars are "relatively" light for those tire sizes it makes little to no difference. There are more reinforcement in XL rated sidewalls to allow it to handle higher weight rating, so typically XL rated tires of the same size/make/model will right stiffer, but I doubt that'll be an issue with the PSS. __________________ Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
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06-04-2015, 01:29 PM	#3
Finnegan Dog Listener 701 Rep 7,850 Posts Drives: Z4M/. Z3M, E36/46 M3 Join Date: Oct 2008 Location: Teaching the dog to slalom iTrader: (22)	Love the PSS. A slightly stiffer sidewall won't be much of an issue. For close to the same price as tires alone you could buy a set of Apex wheels with PSS tires. Or some practically new NT05s. Both easily fit a stock suspension or stock wheels. http://www.zpost.com/forums/showthread.php?t=1133201
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06-04-2015, 08:07 PM	#5
dubsesd #dubspec 6328 Rep 5,200 Posts Drives: G05 X5/ 2016 F80 M3 INDVL Join Date: Jul 2011 Location: Ottawa iTrader: (2)	I have xl both front and rear in 19" and the ride is great. Actually better to have the xl up front for braking. __________________ LCI ///F80 M3 Individual Atlantis Metallic / Black Full / Carbon Cermics / 6MT MPE / M Performance & Carbon package / KW v3 / 20" HRE R101LW / 20" HRE 527s / Michelin PSS / 20% tint / 3d Design / Streckenn splitters / OEM GTS hood / EAS Carbon seatbacks / Carbon RKP sideskirt / Bootmod3 / M Performance Tri color alcantara / AWE S Flow instagram: @ dubsesd
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06-13-2015, 02:06 PM	#6
dekaliber Major 74 Rep 1,143 Posts Drives: '07 Z4MC, '11 JCW, '18 Z06 Join Date: Mar 2008 Location: Los Angeles iTrader: (1)	I just installed a set of PSS on my Z4MC a couple of weeks ago and have been happy with them. I run aftermarket wheels so I went 245/40 front and 275/35 back. They are noticeably quieter and softer than the Nitto NT-05s I had before (expected), but a minor compromise the profile is less square and aggressive looking. Haven't taken the car autocrossing/track yet but so far does not appear to have compromised much on the handling. As others have said I don't think you'll have an issue with the load ratings.
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