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      02-13-2021, 12:16 PM   #1
JAK_T
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Question Tire fitment issue

Hi!
I have a little dilemma about tire fitment for my x5. Due to a shortage of 22" winter tires i was 'forced' to order alternatives. OEM size is: 275/35 R22 & 315/30 R22. So for the front i bought 265/35 R22 and for rear 315/35 R22. They hasn't been tried on yet. And i am hesitating should I try them on or just send it back to the shop. Could you advice me about this setup? Does anyone have a similar experience? Thanks in advance,
Jakub
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      02-13-2021, 01:11 PM   #2
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Quote:
Originally Posted by JAK_T View Post
Hi!
I have a little dilemma about tire fitment for my x5. Due to a shortage of 22" winter tires i was 'forced' to order alternatives. OEM size is: 275/35 R22 & 315/30 R22. So for the front i bought 265/35 R22 and for rear 315/35 R22. They hasn't been tried on yet. And i am hesitating should I try them on or just send it back to the shop. Could you advice me about this setup? Does anyone have a similar experience? Thanks in advance,
Jakub
OK, if you're changing tire sizes front and rear - they should not exceed 1% difference in overall tire size or you're going to wreck xDrive drivetrain.

I highly recommend you send the 265/35 and 315/35 set back to the shop.

OEM
275/35R22 = 29.6" and 315/30R22 = 29.4" or difference of 0.2" / -0.7%

Tires you've purchased
265/35R22 = 29.4" and 315/35R22 = 30.7" or difference of 1.4" / 4.4%

Front and rear tire aspect ratios can be identical if using a square setup.
Front and rear tire aspect ratios can't be identical using a staggered setup.
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      02-13-2021, 02:26 PM   #3
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Send them back - you've put together a dangerous package.

Keep your summers on your current wheels and purchase a square 19" or 20" winter set-up.
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      02-13-2021, 03:05 PM   #4
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I have never been so involved in learning about tires and their effects on drivetrain, speedo, etc. glad y'all are here in this forum!
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      02-14-2021, 06:46 AM   #5
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Most definitely send them back. That's way off
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      02-14-2021, 07:08 AM   #6
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Originally Posted by nZtiZia View Post
I have never been so involved in learning about tires and their effects on drivetrain, speedo, etc. glad y'all are here in this forum!
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      02-14-2021, 04:24 PM   #7
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Quote:
Originally Posted by JAK_T View Post
Hi!
I have a little dilemma about tire fitment for my x5. Due to a shortage of 22" winter tires i was 'forced' to order alternatives. OEM size is: 275/35 R22 & 315/30 R22. So for the front i bought 265/35 R22 and for rear 315/35 R22. They hasn't been tried on yet. And i am hesitating should I try them on or just send it back to the shop. Could you advice me about this setup? Does anyone have a similar experience? Thanks in advance,
Jakub
this is what you should do:

1) send back those tires

2) buy 285/35/22 winter tires f/r for square setup (basically same diameter of stockers). these tires run on rim widths from 9.5"-11". why you guys run 315s for winter driving idk. https://m.tirerack.com/tires/tires.j...omCompare1=yes

3) enjoy winter driving
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      02-14-2021, 11:52 PM   #8
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Quote:
Originally Posted by nZtiZia View Post
I have never been so involved in learning about tires and their effects on drivetrain, speedo, etc. glad y'all are here in this forum!
Haha...so true
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