[visionaut]

Originally Posted by alohasurftoad

oem diameter on F3/4 series is 26". 225/40/18 is 25".

My bad, didn't catch that aloha. I just mentally read the Q as referring to 225/45-18, the OEM size, when I replied...

[tomppa]

Originally Posted by alohasurftoad

oem diameter on F3/4 series is 26". 225/40/18 is 25". while that size will work, it will cause more speedo error, accrue more mileage by some small percent and increase your fenderwell gap 1/2"(12.7mm).

235/45/18(26.3") would be a more ideal tire size to fit on the oem staggered 18"x8" and 18"x8.5" wheels.

see this thread...https://f30.bimmerpost.com/forums/sh...+235%2F45%2F18

.

my bad, meant the OEM size 225/45/18.

[Sigge]

Sorry for hijacking the thread. Planning to buy a new set of rims this spring for my xDrive

Spec

Front – 20×8.5 ET40

Rear – 20×10 ET45

Thinking tires

Front - 235x35

Rear - 275x30

Thoughts?

[alohasurftoad]

Originally Posted by Sigge

Planning to buy a new set of rims this spring for my xDrive
Front – 20×8.5 ET40
Rear – 20×10 ET45
Thinking tires
Front - 235x35
Rear - 275x30
Thoughts?

that should work fine, however you might want to consider a 5, 7.5 or 10mm spacer up front for appearance or an offset of ET35-ET30, if available, since ET40 is slightly more tucked.

[Sigge]

Originally Posted by alohasurftoad

that should work fine, however you might want to consider a 5, 7.5 or 10mm spacer up front for appearance or an offset of ET35-ET30, if available, since ET40 is slightly more tucked.

Yeah thats what i thought aswell. Want a pretty aggressive look.

Whats the lowest ET you can go on the F36? Would ET31 front and ET38 rear be to low?

[Luie]

Quick question for you guys. 2014 320i xDrive. Factory tire size is 225/50R17. Id like to upgrade that to a slightly bigger tire. Whats a safe option?

[thejeremyman9]

Originally Posted by Luie

Quick question for you guys. 2014 320i xDrive. Factory tire size is 225/50R17. Id like to upgrade that to a slightly bigger tire. Whats a safe option?

You have to be more specific. Bigger in what way? Taller sidewall? Wider wire with same overall height? Same wheels or different wheel size? If different wheels, what size? Looking for more flush fitment? etc etc.

[Luie]

Same wheels. Thinking the factory 225/50 in the front but a slight bigger 255/45 in the rear. Just not sure with the xDrive is that safe.

[mbasic2]

Hello, 335i xdrive, i bought OEM 437M, 9x19 and 10x19.

What tyre size I need for xdrive?

If tyre is not suitable, would xdelete avoid problems with transfer case?

Thanks