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      10-08-2020, 11:19 PM   #1
rswitch
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Tire Sizing Help for 20x9 et25 and 20x10 et30

Hi Everyone, Im looking to go wider tires for my vorsteiner vff-103
I currently have the stock 245/35 and 275/30 tires
and was hoping someone has advice on a wider and meatier size tires?

I was thinking of 265/35 and 285/35?
Any help is appreciated! thanks
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      01-06-2022, 03:58 PM   #2
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I have just taken delivery of 255/35/20 and 285/30/20 for 9 and 10 inch rims respectively.
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      01-06-2022, 04:46 PM   #3
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265/35 will not work with 285/35, it's too much of a difference in height.
The 265/35 will fit perfectly, it can be paired with a 275/35 which is perfectly good for 10" wheels and I'd recommend this setup.
295/30 would have a good height to pair with 265/35 but would not fit with your offset of 30 and a 285/30 is also too short to pair with 265/35 even though it would fit.

Another alternative is 275/30 front and 285/30 rear which should fit although it'd be aggressive in the front.
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      01-15-2022, 11:54 PM   #4
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Quote:
Originally Posted by Superjackson View Post
265/35 will not work with 285/35, it's too much of a difference in height.
The 265/35 will fit perfectly, it can be paired with a 275/35 which is perfectly good for 10" wheels and I'd recommend this setup.
295/30 would have a good height to pair with 265/35 but would not fit with your offset of 30 and a 285/30 is also too short to pair with 265/35 even though it would fit.

Another alternative is 275/30 front and 285/30 rear which should fit although it'd be aggressive in the front.
Thank you so much!! This is much appreciated!
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      01-25-2022, 08:04 AM   #5
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It is indeed a good idea to avoid significant diameter difference between front and rear for the Xdrive clutch, even if the DSC calculator can identify circumference differences and adapt.

Here you go with safe tire sizes:

245/35/20 and 275/30/20 (stock) and that is -0.96% for rear axle

255/35/20 and 285/30/20 (Alpina tourer stock) and that is -1.09% for rear axle

255/35/20 and 295/30/20 (Alpina sedan stock) and that is -0.22% for rear axle

Notes:

265/35/20 and 295/30/20 (suggested by Superjackason) means -1.23% for rear axle

265/35/20 and 285/35/20 means +2.02% for rear axle (don't do that)

Cheers
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      01-25-2022, 10:06 AM   #6
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Dinan recommends 265/35/20 and 295/30/20 on their 9et28 and 10et43 rims.

https://www.dinancars.com/products/w...0-0092-AR1-HYP
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      01-26-2022, 07:53 PM   #7
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Quote:
Originally Posted by NTTY View Post
It is indeed a good idea to avoid significant diameter difference between front and rear for the Xdrive clutch, even if the DSC calculator can identify circumference differences and adapt.

Here you go with safe tire sizes:

245/35/20 and 275/30/20 (stock) and that is -0.96% for rear axle

255/35/20 and 285/30/20 (Alpina tourer stock) and that is -1.09% for rear axle

255/35/20 and 295/30/20 (Alpina sedan stock) and that is -0.22% for rear axle

Notes:

265/35/20 and 295/30/20 (suggested by Superjackason) means -1.23% for rear axle

265/35/20 and 285/35/20 means +2.02% for rear axle (don't do that)

Cheers
Thank you!
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