[SM335i]

Originally Posted by niquehawk5

you might rub if you are lowered. thats a pretty aggressive offset even for pre-lci if you have it. the reason i say most tire brands is because they all run different so the % might be slightly different for every tire. if you look on tire rack you can get the exact measures on there and do the calc yourself to be sure.

Yeah it is. Can't find any pics of how a 9.5 with ET22 looks in the back

[ChazCulver]

So does the difference in stagger not make any difference in rolling diameter?

I see a lot of popular working tire sizes, but does it matter if you're doing 9.5/11 vs 9/11 vs 9/10 etc etc?

[niquehawk5]

Originally Posted by ChazCulver

So does the difference in stagger not make any difference in rolling diameter?

I see a lot of popular working tire sizes, but does it matter if you're doing 9.5/11 vs 9/11 vs 9/10 etc etc?

tire rolling diameter matters, stagger on wheels does not. just tire width and ratio front to back. different size wheels just will affect how much stretch you have.

[ChazCulver]

but stretching a tire further will not change it's rolling diameter?

[BRAISKI]

Originally Posted by zippyskout

So I swapped out the 265/30/19 for 275/30/19 in the back and what a difference!!

Smooth as butter now.......word of caution to those with xi and running 235/35/19 front and 265/30/19 rears, there is a better fit!!

All the surging and "weirdness" is gone, so glad I swapped.

Makes sense as with the 265/30/19's the rears were turning almost 7x more per mile than the fronts....

Good to know! Whats the width of your rims?

[Gunner_27]

Originally Posted by rosica

After so many posts asking “will this staggered tire combo work”, I decided to make the following charts to help out.

Any difference above the generally accepted 1% is crossed out on the chart.

The factory staggered setups are marked in BLUE.

From my personal experience I like the factory 18” staggered setup vs my 235/275 19” setup. Why? 17” looks too small on a e90 and 19” offers so little sidewall bent wheels are inevitable.

Enjoy!!

PS: The tire data was takes from S-04 and Pilot SS, there could be variably among brands and models

Just want to confirm what I am concluding is right, new to the tire stuff.

I am good to run 225 45 R17 in front and 255 40 R17 in the rear, since it is factory staggered set up ?

[oscar7214]

thanks for the info brooo

[prime300]

How come 225/245 is not recommended in 18s chart but it comes standard on the M235i xdrive :/?? Did BMW changes their tire size allowance?

[floydarogers]

Originally Posted by prime300

How come 225/245 is not recommended in 18s chart but it comes standard on the M235i xdrive :/?? Did BMW changes their tire size allowance?

Different car models have different aspect ratios, too. Many tires are available in only some aspect ratios.

For instance, they changed the tire size from E9x to F3x via an aspect ratio change.

[MakkkD]

Anyone fitting a 245/40/19 square setup at all?

[borisivan]

(from thread here, but since this thread seems to be the authority, asking here...)

I have a 2010 335xi w sport package / staggered. I've been getting my tires from tirerack, and have been using the sumitomo HTR III for my summer rims, which was (and still is) one of the recommended staggered combos for my specific vehicle.

My fronts are shot due to a bad alignment, and was going to replace. The rears are in great shape, and have 7/32 tread remaining.

The difference in revs per mile if I replace only the fronts, would be .79% (i.e. less than the magic "1%".).

BUT -- I just noticed that on the specs for these tires, it seems to have the largest difference in revs per mile than all the other ones:

front: 826 / mile
rear: 832 / mile

... which right off the bat, is a difference of .8% ... i.e. almost 1% right there!!!!!!

So, if I combine me reduced tread on the rears, with new fronts, the difference is 1.59%, which is well above the magic 1%.

I have an appt later today to put the new fronts on. Should I cancel?

Ugh, I've been doing this for years, car is @ 140k. Wonder what damage I've done.

I understand that different tires in a staggered setup will be fairly impossible to be 100% perfectly the same revs / mile. The OEM tires seem to have a difference of 3 revs/mile, as do most of the other recommended staggered combos. But the sumitomo htr III has a difference of 6 revs right off the bat, which puts us right up against the 1% number even when all are brand new.

What gives? Am I understanding things incorrectly? Looking for recommendations, thx.

[xxMike61]

Running 255/30/19 on front and 265/30/19 on rear.

Front are 19x9 +35
Rear are 19x10 +38

According to chart it is within 0.8% of factory wheels. Drives fine. Noticeable wheel gap in front wells due to stock suspension. Is the 0.8% difference that significant?

Thanks

[Firewired1]

Why hasn't this been stickied yet ??? Mods, this is good info

[fast_67ford]

yup

[tmanm3]

Any info on 20in wheels?

Looking at getting HRE FF01 but have no idea on width and tires I should get. Can I do 20x9 and 20x10 or do I need to be smaller? What tire set up? Sorry just new to all this.

[igzekyativ]

So I got a bubble in the sidewall of one of my tire, and of course, they are no longer made. So I have been hunting for a used replacement...

A set of 245/35ZR19s of the same tire just came up for sale. I need to know if I am within the 1% tolerance now that my rears have worn down a little...

Current setup when new:
235/35ZR19 - Front - 25.5" diameter - 815 revs/mi
265/30ZR19 - Rear - 25.3" diameter - 821 revs/mi

Replacement tires for the front;
245/35ZR19 - Front - 25.8" diameter - 805 revs/mi

Obviously the current tires have been worn down a little, do I need to get their tread depth in order to know if the replacements will be within 1%? The replacements have 10/32 tread depth. How could you even figure out if enough tread has been worn off the rears so that it falls within the 1% tolerance.

Edit: I realized my logic was wrong. As the rears wear, they get more revs per mile, therefore increasing the difference between the potential replacement tires.... sigh

[Blueeyesredpanda]

BUMP this should be sticky

[Blueeyesredpanda]

Sticky This

[b2ke]

What formula/calculations were used to find the % difference? My tire sizes are not on the chart and want to calculate the % difference myself

[martinm0]

Originally Posted by b2ke

What formula/calculations were used to find the % difference? My tire sizes are not on the chart and want to calculate the % difference myself

Go to the Wheels and Tires subform and right at the top are tools for comparing tire sizes, offsets, etc.

[b2ke]

thanks so much looks like im under the %1

running 225/40/19 front and 255/25/19 rear

[zipstic]

Originally Posted by b2ke

thanks so much looks like im under the %1

running 225/40/19 front and 255/25/19 rear

255/25/19 in the rear? Hmm...