Strage wheel measure

Ander335xi · 02-03-2019, 01:07 PM

Hi guys!

I have some problems with my tyre spec. I am runing 235/35/19 in the front (michelin pilot super sport) and 265/30/19 on rear (verdestein ultra vortic r). 8.5/9.5. I know that it is a strange wheel conbination front/rear but the measures are correct.

the car started tugging and unplug the transfer case. The car is going fabulous with rwd. today I measured the circumference of the front and rear wheels, the front measures 2051mm and rear 2022mm.

I do not understand why the difference is so huge, it is on 1,5%. Could it be because in front have michelis pilot super sport?

I will change the 4 wheels and put 235/275 spec in the future.

Sorry about my english, i have to improve

Thanks all!

3002 tii · 02-03-2019, 07:58 PM

Quote:

Originally Posted by Ander335xi

Hi guys!

I have some problems with my tyre spec. I am runing 235/35/19 in the front (michelin pilot super sport) and 265/30/19 on rear (verdestein ultra vortic r). 8.5/9.5. I know that it is a strange wheel conbination front/rear but the measures are correct.

the car started tugging and unplug the transfer case. The car is going fabulous with rwd. today I measured the circumference of the front and rear wheels, the front measures 2051mm and rear 2022mm.

I do not understand why the difference is so huge, it is on 1,5%. Could it be because in front have michelis pilot super sport?

I will change the 4 wheels and put 235/275 spec in the future.

Sorry about my english, i have to improve

Thanks all!

Yes you can’t expect different tire brands/makes to have the same relative sizing. Also the Michelin has better grip compared to vreds so that doesn’t help neither. You should stick to matching tires in general.

hassmaschine · 02-04-2019, 11:20 AM

yeah, you can mix widths on an xi (assuming the overall diameter is similar), but you shouldn't mix brands and models. Although I'm not sure staggared sizes makes sense on a car that already understeers heavily..

Ander335xi · 02-04-2019, 01:06 PM

Thanks a lot for your advice. from now on I know that I do not have to mix makes anymore. I will install 235/275 spec on a moth more or less and i will prove that the transfercase is working properly. Cheers!!

02-03-2019, 01:07 PM	#1
Ander335xi New Member 6 Rep 18 Posts Drives: Bmw e91 335xi n54 Join Date: Mar 2018 Location: Basque country iTrader: (0)	Hi guys! I have some problems with my tyre spec. I am runing 235/35/19 in the front (michelin pilot super sport) and 265/30/19 on rear (verdestein ultra vortic r). 8.5/9.5. I know that it is a strange wheel conbination front/rear but the measures are correct. the car started tugging and unplug the transfer case. The car is going fabulous with rwd. today I measured the circumference of the front and rear wheels, the front measures 2051mm and rear 2022mm. I do not understand why the difference is so huge, it is on 1,5%. Could it be because in front have michelis pilot super sport? I will change the 4 wheels and put 235/275 spec in the future. Sorry about my english, i have to improve Thanks all! Attached Images
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02-04-2019, 11:20 AM	#3
hassmaschine Major General 3966 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	yeah, you can mix widths on an xi (assuming the overall diameter is similar), but you shouldn't mix brands and models. Although I'm not sure staggared sizes makes sense on a car that already understeers heavily..
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02-04-2019, 01:06 PM	#4
Ander335xi New Member 6 Rep 18 Posts Drives: Bmw e91 335xi n54 Join Date: Mar 2018 Location: Basque country iTrader: (0)	Thanks a lot for your advice. from now on I know that I do not have to mix makes anymore. I will install 235/275 spec on a moth more or less and i will prove that the transfercase is working properly. Cheers!!
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