343M RIMS 245/40/20 & 285/35/20 on their F10 550I XDRIVE?

SocomCA · 11-28-2023, 12:26 AM

Hey guys,

I have a 2016 BMW 550i xdrive with 343m M5 rims currently and with a 3mm spacer (looking to eventually removing that with m5 caliper changes) and i was wondering, would it be possible to currently run 245/40/20 & 285/35/20 on my F10 550i xdrive awd without it causes an issue with rubbing?

Also, if i get dinan springs to lower the car, would that tire size be a problem with the 40 front side wall height and 35 rear side wall height?

For the awd system it's less than 1% difference between the front and rear diameter so its not a problem with that.

Currently I have a 245/35/20 & 285/30/20 for summer tires but I cant seem to find winter tires for that size and plus I would like the higher tire height to fill the tire gap better and for more comfort.

Any advice would be great!

9mmkungfu · 12-12-2023, 02:43 PM

Thinking about running 245/40/20, 275/35/20 as well. I saw that Unspec may be running this setup and reached out to confirm.

Unspec · 12-13-2023, 11:55 AM

I am running the same fronts but slightly smaller (275/35/20) rears. No rubbing, even on pretty aggressive lowering.

11-28-2023, 12:26 AM	#1
SocomCA Private First Class 18 Rep 142 Posts Drives: BMW M6 Join Date: Jan 2020 Location: USA iTrader: (0)	343M RIMS 245/40/20 & 285/35/20 on their F10 550I XDRIVE? Hey guys, I have a 2016 BMW 550i xdrive with 343m M5 rims currently and with a 3mm spacer (looking to eventually removing that with m5 caliper changes) and i was wondering, would it be possible to currently run 245/40/20 & 285/35/20 on my F10 550i xdrive awd without it causes an issue with rubbing? Also, if i get dinan springs to lower the car, would that tire size be a problem with the 40 front side wall height and 35 rear side wall height? For the awd system it's less than 1% difference between the front and rear diameter so its not a problem with that. Currently I have a 245/35/20 & 285/30/20 for summer tires but I cant seem to find winter tires for that size and plus I would like the higher tire height to fill the tire gap better and for more comfort. Any advice would be great! Attached Images
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12-12-2023, 02:43 PM	#2
9mmkungfu Captain 198 Rep 844 Posts Drives: 335d, 535d, 750i, X5 35d Join Date: Sep 2014 Location: United States iTrader: (1)	Thinking about running 245/40/20, 275/35/20 as well. I saw that Unspec may be running this setup and reached out to confirm.
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12-13-2023, 11:55 AM	#3
Unspec Colonel 1301 Rep 2,591 Posts Drives: 2015 BMW 535xi Join Date: Apr 2019 Location: DMV iTrader: (1)	I am running the same fronts but slightly smaller (275/35/20) rears. No rubbing, even on pretty aggressive lowering. __________________ 2015 BMW 535xi Bootmod3 Stage 2 \| ER charge pipe \| ER Catted DP \| Remus Exhaust \| Gplus FMIC \| KW V3 \| Turner Monoball thrust arm bushings \| Wallet regrets ISTA VM Setup/Tutorial
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