21 in Wheels setup

sergiyny · 11-07-2021, 09:27 PM

I'm looking to buy 21in style 612 rims and I want to put on them 275/40/21 and 315/35/21 tires, does anyone know if I'll have any issues with the rubbing? I want this tire setup to have a more comfortable ride.

RED_Y_ · 11-08-2021, 10:01 AM

OEM Specs are:
Front: 285/35 R 21
Rear: 325/30 R 21
If you want a more comfortable ride go with 20 inch rims instead of 21. This particular size should fit as far as I can tell, just use this tool here to verify:
https://www.wheel-size.com/calc/?whe...cl=50mm&sr=0mm

NYBulldog · 11-09-2021, 04:31 AM

Quote:

Originally Posted by sergiyny

I'm looking to buy 21in style 612 rims and I want to put on them 275/40/21 and 315/35/21 tires, does anyone know if I'll have any issues with the rubbing? I want this tire setup to have a more comfortable ride.

Exact sizes I have. Noticeably more comfortable and zero rubbing.

sergiyny · 11-09-2021, 08:15 AM

Quote:

Originally Posted by NYBulldog

Quote:

Originally Posted by sergiyny

I'm looking to buy 21in style 612 rims and I want to put on them 275/40/21 and 315/35/21 tires, does anyone know if I'll have any issues with the rubbing? I want this tire setup to have a more comfortable ride.

Exact sizes I have. Noticeably more comfortable and zero rubbing.

What rims you have and what are your offsets?

NYBulldog · 11-09-2021, 08:50 AM

Quote:

Originally Posted by sergiyny

What rims you have and what are your offsets?

I have BBS CH-R II in 21x10 ET38 and 21x11.5 ET36

LOW4LYF · 11-11-2021, 11:05 PM

Quote:

Originally Posted by NYBulldog

I have BBS CH-R II in 21x10 ET38 and 21x11.5 ET36

Can you please post some pictures?

NYBulldog · 11-12-2021, 10:12 AM

Quote:

Originally Posted by LOW4LYF

Can you please post some pictures?

These are the only pictures I have. Sorry to thread jack OP... but at least they do have the tire sizes you were looking for.

sukhk527 · 11-12-2021, 10:42 AM

Transfer case not give you any issues ? Nice!

NYBulldog · 11-12-2021, 02:04 PM

Quote:

Originally Posted by sukhk527

Transfer case not give you any issues ? Nice!

Zero. The heights are exactly equal. Thanks.

LOW4LYF · 11-12-2021, 03:47 PM

Quote:

Originally Posted by NYBulldog

These are the only pictures I have. Sorry to thread jack OP... but at least they do have the tire sizes you were looking for.

Sooooo good! Thanks for sharing...

bmwx5er · 11-12-2021, 07:53 PM

Quote:

Originally Posted by sukhk527

Transfer case not give you any issues ? Nice!

Transfer case will act up only if rear & front running diameters differ beyond a threshold. The speed displayed will have an error, though, with non-standard OEM sizes.

sukhk527 · 11-12-2021, 09:04 PM

Quote:

Originally Posted by bmwx5er

Quote:

Originally Posted by sukhk527

Transfer case not give you any issues ? Nice!

Transfer case will act up only if rear & front running diameters differ beyond a threshold. The speed displayed will have an error, though, with non-standard OEM sizes.

Yea I know, I only asked because I experienced the tcase stutter when I upsized from 19s to 20s and an ISTA calibration took care of it with new fluid. I guess I'm extra precautious now lol.

11-07-2021, 09:27 PM	#1
sergiyny Private 6 Rep 51 Posts Drives: BMW X5 M Sport Join Date: Apr 2021 Location: New York iTrader: (0)	21 in Wheels setup I'm looking to buy 21in style 612 rims and I want to put on them 275/40/21 and 315/35/21 tires, does anyone know if I'll have any issues with the rubbing? I want this tire setup to have a more comfortable ride.
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11-08-2021, 10:01 AM	#2
RED_Y_ Colonel 1062 Rep 2,520 Posts Drives: 2014 X5 3.5d Join Date: Sep 2017 Location: SF Bay Area iTrader: (0)	OEM Specs are: Front: 285/35 R 21 Rear: 325/30 R 21 If you want a more comfortable ride go with 20 inch rims instead of 21. This particular size should fit as far as I can tell, just use this tool here to verify: https://www.wheel-size.com/calc/?whe...cl=50mm&sr=0mm
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11-12-2021, 10:42 AM	#8
sukhk527 Captain 2194 Rep 815 Posts Drives: BMW X5 XDrive35i Join Date: Dec 2020 Location: Chicago, IL iTrader: (0) Garage List 2017 BMW X5 XDrive35i [10.00]	Transfer case not give you any issues ? Nice! __________________ 2017 X5 XDrive35i X-Line \| Sophisto Grey \| MHD Full Flexfuel Tuned \| Mosselman Turbo\| Sutphin Tuning TCU \| Nostrum Stage 2 HPFP \| ER Charge Pipe \| BimmerHausPerformance Intake and Inlet \| ApexBuilt Catted DP \| VRSF FMIC \| Zeitronix Flexfuel Kit \| KateCool Oil Cooler \| Variant Wheels \| Conti DWS06+ \|
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21 in Wheels setup