Tire size suggestion for staggered 9.5x19 ET23 front, 10.5x19 ET23 rear?

kamber · 10-23-2016, 12:22 AM

Just purchased a new set of TE37 Ultra's in 9.5x19 ET23 front, 10.5x19 ET23 rear.

I was originally looking to run either
- 265/30R19 front and 285/30R19 rear
or
- 275/30/R19 front and 295/30R19 rear

Unfortunately, the tire I'm looking to go with (Michelin A/S 3+) is only available in the following sizes (I realize that the MPSS is available in my ideal sizes, but I'd much prefer to go with A/S 3+'s considering this is my daily driver in rainy WA, the price difference, greater treadwear, and I don't plan on pushing the limits of the A/S 3+'s on a purely street driven vehicle anyway):

255/35R19
275/30R19
285/30R19

As such, I'll be going with a 285/30R19 in the rear, however I'm unsure of which size to choose for the front. Of the remaining two sizes, which would make the most sense for a front tire size on a 100% street driven vehicle? What are the tradeoffs with going with a 30mm stagger vs a 10mm stagger, considering the stock stagger is 20mm?

Thanks fellas!

Ingenio · 10-23-2016, 06:32 AM

I believe the greater the stagger the more understeer you'll get..

kamber · 10-23-2016, 12:46 PM

Gotcha. Ill go with 275/30R19 front then, for a 10mm staggered. I suppose it should feel like a middle ground between the popular 20mm stagger and a square setup! Thanks for the info.

kamber · 10-23-2016, 03:51 PM

Just pulled the trigger on 275/30R19 front and 285/30R19 rear at costco, today was the last day on the rotating Michelin $70 off promo.

I triple checked with the manager and apparantly the warranty policy towards staggered setups at costco is:
- FULL warranty on the REARS
- half warranty on the FRONTS

I was very surprised, as I thought the opposite to be the industry standard. Anyhow, that works out extremely well for us RWD owners.

VividRacingII · 10-26-2016, 01:30 PM

Hey Kamber!

I know you worked with Kevin to get a set of TE37 Utlra from us. You got a hell of good deal! Yesterday, I bought myself one set of Ultra with the same spec of yours. I will be putting them on my Frozen Sakir Orange M3...

Let's post pictures once they are on the car~ I can't wait to see them in person.

kamber · 10-26-2016, 01:41 PM

Nice! What finish did you get and what tire sizes are you going with?

It was definitely a killer deal... half of the used TE37's I see for sale on these forums are asking more than what this new set of Ultras cost.

10-23-2016, 12:22 AM	#1
kamber E90 167 Rep 821 Posts Drives: '08 M3 Join Date: Jun 2016 Location: NJ iTrader: (7)	Tire size suggestion for staggered 9.5x19 ET23 front, 10.5x19 ET23 rear? Just purchased a new set of TE37 Ultra's in 9.5x19 ET23 front, 10.5x19 ET23 rear. I was originally looking to run either - 265/30R19 front and 285/30R19 rear or - 275/30/R19 front and 295/30R19 rear Unfortunately, the tire I'm looking to go with (Michelin A/S 3+) is only available in the following sizes (I realize that the MPSS is available in my ideal sizes, but I'd much prefer to go with A/S 3+'s considering this is my daily driver in rainy WA, the price difference, greater treadwear, and I don't plan on pushing the limits of the A/S 3+'s on a purely street driven vehicle anyway): 255/35R19 275/30R19 285/30R19 As such, I'll be going with a 285/30R19 in the rear, however I'm unsure of which size to choose for the front. Of the remaining two sizes, which would make the most sense for a front tire size on a 100% street driven vehicle? What are the tradeoffs with going with a 30mm stagger vs a 10mm stagger, considering the stock stagger is 20mm? Thanks fellas!
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10-23-2016, 06:32 AM	#2
Ingenio Major 180 Rep 1,171 Posts Drives: 2008 Space Grey E92 M3 (6MT) Join Date: Apr 2015 Location: Perth iTrader: (0)	I believe the greater the stagger the more understeer you'll get..
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10-23-2016, 12:46 PM	#3
kamber E90 167 Rep 821 Posts Drives: '08 M3 Join Date: Jun 2016 Location: NJ iTrader: (7)	Gotcha. Ill go with 275/30R19 front then, for a 10mm staggered. I suppose it should feel like a middle ground between the popular 20mm stagger and a square setup! Thanks for the info.
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10-23-2016, 03:51 PM	#4
kamber E90 167 Rep 821 Posts Drives: '08 M3 Join Date: Jun 2016 Location: NJ iTrader: (7)	Just pulled the trigger on 275/30R19 front and 285/30R19 rear at costco, today was the last day on the rotating Michelin $70 off promo. I triple checked with the manager and apparantly the warranty policy towards staggered setups at costco is: - FULL warranty on the REARS - half warranty on the FRONTS I was very surprised, as I thought the opposite to be the industry standard. Anyhow, that works out extremely well for us RWD owners.
	Appreciate 0 Quote

10-26-2016, 01:30 PM	#5
VividRacingII 75 Rep 885 Posts Drives: E92 M3, F80 M3 Join Date: Jan 2016 Location: Arizona iTrader: (0)	Hey Kamber! I know you worked with Kevin to get a set of TE37 Utlra from us. You got a hell of good deal! Yesterday, I bought myself one set of Ultra with the same spec of yours. I will be putting them on my Frozen Sakir Orange M3... Let's post pictures once they are on the car~ I can't wait to see them in person.
	Appreciate 0 Quote

10-26-2016, 01:41 PM	#6
kamber E90 167 Rep 821 Posts Drives: '08 M3 Join Date: Jun 2016 Location: NJ iTrader: (7)	Nice! What finish did you get and what tire sizes are you going with? It was definitely a killer deal... half of the used TE37's I see for sale on these forums are asking more than what this new set of Ultras cost.
	Appreciate 0 Quote