[ezaircon4jc]

Originally Posted by Drilon123

Hey guys I'm running a staggered set up on my 2021 540i but I have been dealing with constant vibration past 65 mph, I've had them balanced multiple times, aligned, I even got the right hub ring size 66.6 mm which fit perfectly. My tires are brand new PILOT AS4s and the tire set up is 245/35/20 with 8.5 in rims in the front and 275/30/20 with a 9.5 in rim in the back, what is causing the vibration?

I'm assuming aftermarket wheels since you have hub-centric rings. Even though you have the "correct" size, I would still suspect the rings. I've had nothing but trouble with aftermarket wheels & centering rings.

[540iCarbonGolfing]

Originally Posted by PJinCA

I did it today, got new rear tires installed (bridgestone potenzas s0001), in 295/35/20 and they fit perfectly. No rubbing at all and they look aggressive and wide

What were your fronts?

[Krisztian93]

Originally Posted by menace_474

Hi all! Just created an account to thank everyone in this thread for helping me to choose my new rims and tires.

For rims i went with Arceo Valencia matte black. For tires i had go with Continental Sport Contact 7 (because Michelin Pilot Sport 4 was not available obviously ).

Front tires: 255/35/20
Front rims: 20" 9J 35 offset

Rear tires: 295/30/20
Rear rims: 20" 10J 40 offset

I think this is ideal setup. No need for spacers, no need for shorter springs (because bigger wheels fill the arches quite well), no rub issues (even when i turn front wheels all the way). And this sizes did not cause any problems with XDrive.

New wheels made a lot of difference imo. I was running 20" individual rims. Car went from looking like daily commuter to a intimidating mean machine. What can i say, i'm happiest guy right now. I just can stop smiling when i look at my car.

Just a quick heads up: if you have M sport brakes option from factory you will need 5mm spacers and longer bolts in front.

This is the first wheel i like on a g30 , can you make more photos from the front with side , so i can see how it looks i might go same wheel like you.. 255/35/20 295/30/20 but i will also ger bilstein b16 and make it flush ..

[7imur]

Originally Posted by TexasM550i

Yes, the 305's fit in the rear.

My wheels
BMW MSport Wheels 86281, 86285
20×10.5 R 20×9 F

Tires
Front 275/35R20
Rear 305/30/20

Your circumfrance difference is 1.5%, +10 revs per mile, I would recommend going 265/35R20 for front👌🏽

[upgradeup]

I've just bought some wheels for my g30 520d 2017

Front wheels: 20" 8.5J 28 offset
Rear wheels: 20" 9.5J 35 offset

Would 245/35/20 and 275/30/20 be a good tire setup? It's not lowered and no spacers.

[Tpriest7893]

Originally Posted by TexasM550i

On my M550i I'm running 20×10.5 in the rear and 20×9 In the front with 275/35R20 and 305/30R20's. I had the 285's and 290's, but liked the look and ride with the these the best. No rubbing issues.

Stock height?