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      02-23-2016, 08:21 AM   #45
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Quote:
Originally Posted by neurotichamster View Post
I have a GTS also. Best compliment to the X5M
I love that wide hip (4S wide body on a 2WD car).
A 991 and F85, you have it all my friend.
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      02-23-2016, 08:31 AM   #46
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Quote:
Originally Posted by JNoSol View Post
I love that wide hip (4S wide body on a 2WD car).
A 991 and F85, you have it all my friend.
Thank you. It helps to have a GF that's a huge gearhead also
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      02-25-2016, 01:10 AM   #47
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Quote:
Originally Posted by JNoSol View Post
Your assumption doesn't include the aspect ratio. Corrections below:

20s - 275/40 (728mm tall) & 315/35 (728mm tall) - 0% delta (0.5% delta from OEM)
21s - 285/35 (733mm tall) & 325/30 (729mm tall) - .5% delta (OEM)
22s - 295/30 (737mm tall) & 335/25 (727mm tall) - 1.3% delta (0.8% delta compared to OEM)

OEM computers will not throw a code if it's within 1.5% from OEM spec. You are completely fine.
i was thinking about the same that 335/25 is 727mm tall
but, the weird thing is, tire rack SCORPION-0 335/25r22 spec overall dim 28.8"
and same 335/25r22 p-0 overall dim 28.7".
if checking 295/30r22 PSS overall dim is 29" and scorpion-0 is 29.1"

for PSS 325/30r21, overall dim is 28.7" which is close to 729mm

so different brand of tire overall dimension is actually different than what we think that is. check the spec of the tire for accurate data
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      02-25-2016, 06:54 AM   #48
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Quote:
Originally Posted by guess2098
Quote:
Originally Posted by JNoSol View Post
Your assumption doesn't include the aspect ratio. Corrections below:

20s - 275/40 (728mm tall) & 315/35 (728mm tall) - 0% delta (0.5% delta from OEM)
21s - 285/35 (733mm tall) & 325/30 (729mm tall) - .5% delta (OEM)
22s - 295/30 (737mm tall) & 335/25 (727mm tall) - 1.3% delta (0.8% delta compared to OEM)

OEM computers will not throw a code if it's within 1.5% from OEM spec. You are completely fine.
i was thinking about the same that 335/25 is 727mm tall
but, the weird thing is, tire rack SCORPION-0 335/25r22 spec overall dim 28.8"
and same 335/25r22 p-0 overall dim 28.7".
if checking 295/30r22 PSS overall dim is 29" and scorpion-0 is 29.1"

for PSS 325/30r21, overall dim is 28.7" which is close to 729mm

so different brand of tire overall dimension is actually different than what we think that is. check the spec of the tire for accurate data
Yes, there isn't a good regulation on tire dimension. That's why you should always use the same tire brand front and rear. Being off by less than 1.5% from the front to rear is fine. If both front and rear are taller/shorter than stock, the computer doesn't care. It only cares if the front and rear difference is more than 1.5%. I wouldn't over think it, just go with my recommended size and you will be fine.
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      02-25-2016, 12:10 PM   #49
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thank you JNoSol
i have another question, for 22", i actually want to go for PSS 295 all around. i know the rear stock is 325 but i think PSS probably better than scorpion-0. P-0 too expensive... what do you think?
probably not looking too wide on rear but better setup?
22x11 and 22x11.5 with 295 all around
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      02-25-2016, 10:03 PM   #50
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Quote:
Originally Posted by guess2098
thank you JNoSol
i have another question, for 22", i actually want to go for PSS 295 all around. i know the rear stock is 325 but i think PSS probably better than scorpion-0. P-0 too expensive... what do you think?
probably not looking too wide on rear but better setup?
22x11 and 22x11.5 with 295 all around
It would look a bit stretch front and very stretch rear. What is the logic of staggered wheels and non-staggered tires?
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      02-25-2016, 10:48 PM   #51
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Quote:
Originally Posted by JNoSol View Post
It would look a bit stretch front and very stretch rear. What is the logic of staggered wheels and non-staggered tires?
Shot in the dark, but ability to rotate and get more use? My m5 winter setup was square, it looked stupid though because the rear rim stuck out.
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      02-26-2016, 12:21 AM   #52
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Quote:
Originally Posted by PatrickC23 View Post
Shot in the dark, but ability to rotate and get more use? My m5 winter setup was square, it looked stupid though because the rear rim stuck out.
If you want square setup for easy rotation, then go 20x10.5 ET30 all around with either 295/35 or 295/40 all around. In the rear, you'll want 15mm spacers to make it look flush.

You can't rotate if the wheel size are different front and rear.
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      02-26-2016, 05:21 AM   #53
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Quote:
Originally Posted by JNoSol View Post
If you want square setup for easy rotation, then go 20x10.5 ET30 all around with either 295/35 or 295/40 all around. In the rear, you'll want 15mm spacers to make it look flush.

You can't rotate if the wheel size are different front and rear.
I meant dismounting and rotating the tire, which I did with my winter squared setup after two seasons. Provided the direction works.
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      02-26-2016, 07:24 AM   #54
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Quote:
Originally Posted by PatrickC23
Quote:
Originally Posted by JNoSol View Post
If you want square setup for easy rotation, then go 20x10.5 ET30 all around with either 295/35 or 295/40 all around. In the rear, you'll want 15mm spacers to make it look flush.

You can't rotate if the wheel size are different front and rear.
I meant dismounting and rotating the tire, which I did with my winter squared setup after two seasons. Provided the direction works.
Too much work and you can potentially ruin the tire beads between rotation. Go with my suggestion, it will look good and easier to rotate yourself.
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      02-26-2016, 07:50 AM   #55
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Quote:
Originally Posted by neurotichamster
Quote:
Originally Posted by JNoSol View Post
I love that wide hip (4S wide body on a 2WD car).
A 991 and F85, you have it all my friend.
Thank you. It helps to have a GF that's a huge gearhead also
Looks like there is a trend here. F85 + 911 = best year round solution. It might be dry and warm enough to take my 911 TT out this weekend.
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      02-26-2016, 07:55 AM   #56
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Quote:
Originally Posted by WCH View Post
Looks like there is a trend here. F85 + 911 = best year round solution. It might be dry and warm enough to take my 911 TT out this weekend.
I wouldn't mind a used 991 C2S/C4S right now or 997 Turbo.
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      02-26-2016, 11:28 AM   #57
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Quote:
Originally Posted by JNoSol View Post
It would look a bit stretch front and very stretch rear. What is the logic of staggered wheels and non-staggered tires?
i wanna go for 22 but not low profile tire.
worry that 335/25 my wife and kids not too comfortable
original wanna go for 285/40r22 and 325/35r22 but found out the front does not have enough room to put a 285/40r22 there.
max tire probably up to 740mm only
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      02-26-2016, 03:33 PM   #58
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Quote:
Originally Posted by guess2098 View Post
i wanna go for 22 but not low profile tire.
worry that 335/25 my wife and kids not too comfortable
original wanna go for 285/40r22 and 325/35r22 but found out the front does not have enough room to put a 285/40r22 there.
max tire probably up to 740mm only
Just go staggered tires, 295 is too stretch on 22x11.5. The key is forged wheels, cheap wheels will bend no matter if you have more side walls.
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      02-26-2016, 03:53 PM   #59
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Quote:
Originally Posted by JNoSol View Post
Just go staggered tires, 295 is too stretch on 22x11.5. The key is forged wheels, cheap wheels will bend no matter if you have more side walls.
yeah i am going with either HRE P101 or ADV1 MV1 CS
but not sure what to do
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      02-26-2016, 04:13 PM   #60
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Quote:
Originally Posted by guess2098 View Post
yeah i am going with either HRE P101 or ADV1 MV1 CS
but not sure what to do
Both are good. BC Forged will release 22" soon. If you're spending that much on wheels, go staggered with tires. HRE/BC/ADV1 are good at making size/tire recommendation for their setup. 295/335 is the way to go.

FYI, BMW don't even recommend rotating tires. It's not even on the scheduled maintenance, even for non-staggered setup. Our cars are balanced 50/50, no need to rotate unless it's for track racing. I've never rotated tires on any BMWs i've owned, staggered or not. Tires get mounted and stay for the life of it. Lots of wear on the wheel hub/bolts if you keep rotating, that's why people who track or change the wheels a lot switch to stud conversions.
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      06-22-2017, 03:34 PM   #61
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Hey all, I have a 2010 X5 M, was thinking of upsizing wheels from OEM 20's to OEM 21's even though it isn't listed as an alternative size option for these E70's they have the same running gear from models built 2009-2013 would doing to plus size have a negative effect? Or does anyone know of a variance in the model from 2010 to say 2011,12,13 etc that would be different?

I'm sure it's fine but you never know. I've been searching for a while and all data says the same, but some transmissions part numbers vary by year even though they are the same mechanically.

Thoughts? You guys seem to have a handle on this sizing stuff in this thread. Thanks in advance!
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      10-27-2017, 07:26 AM   #62
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Ben at RGSPORT can confirm, but when I was ordering wheels for my F85 they matched the F86 so the bore should be the same.
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      11-02-2017, 09:40 AM   #63
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Anyone have a picture of the DWS06 on the X5M wheels? Side profile and maybe a stand over view?

Trying to see how they look compared to how they fit on our e70 50i with Sport wheels. If they look stretched and smaller or not.

Living in the mid-atlantic with 20k+ miles a year traveled I'm try to decide if sticking it out with the summers and not driving it for long periods of the year is realistic or just change to all seasons and enjoy it all year around.
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      11-27-2017, 08:53 AM   #64
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Winter tire options for OEM 21" staggered wheels

Hello,

I have a 2018 X5 M on its way and has the 21" wheel package. Car is leased and I'd prefer to not have a set of wheels to attempt to sell at the end so am considering just winter tires and dealer said they'd store the Michelin's and swap them on in summer.

Doing research here, it appears that this could work on stock wheels:

Pirelli Scorpian Winter 275/45/21 for fronts on 21x10 rims
and same tire, size 315/40/21 on the back on 21x11.5 rims.

My calculations show that the diameter between front and back would be 0.6%, which if I'm understanding this right, would be less than the 1.5% threshold that creates issues.

The overall diameter would be about 2" taller than the stock setup, which doesn't appear to be an issue from what I'm reading here either, is that right? At least in terms of the ECU, but is there enough travel and room in the wheel well for a setup like this without any rubbing or bottoming?

To get the 285 and 325 combo I can only find Scorpian run flats and I just have such terrible experience with run flats. Any help/advice would be appreciated. Thanks!
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      11-27-2017, 09:07 AM   #65
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Quote:
Originally Posted by faloppi88 View Post
Hello,

I have a 2018 X5 M on its way and has the 21" wheel package. Car is leased and I'd prefer to not have a set of wheels to attempt to sell at the end so am considering just winter tires and dealer said they'd store the Michelin's and swap them on in summer.

Doing research here, it appears that this could work on stock wheels:

Pirelli Scorpian Winter 275/45/21 for fronts on 21x10 rims
and same tire, size 315/40/21 on the back on 21x11.5 rims.

My calculations show that the diameter between front and back would be 0.6%, which if I'm understanding this right, would be less than the 1.5% threshold that creates issues.

The overall diameter would be about 2" taller than the stock setup, which doesn't appear to be an issue from what I'm reading here either, is that right? At least in terms of the ECU, but is there enough travel and room in the wheel well for a setup like this without any rubbing or bottoming?

To get the 285 and 325 combo I can only find Scorpian run flats and I just have such terrible experience with run flats. Any help/advice would be appreciated. Thanks!
Or it appears I could run 295/35/21s all the way around, should fit both the 10" and 11.5" wide rims, but will the back look weird?
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      11-27-2017, 09:30 AM   #66
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Either should work, but I would use the 275/315 combo unless you measure snow in feet instead of inches.
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