Quote:
Originally Posted by JAK_T
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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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.