8.5j and 10j right tire size

[Sylfer]

Hey guys i'm new to the forum...
I'll just knock down the door and fire my question !!!

I drive an f10 520d 2016 lci model.
I have bought new wheels, those are 8.5Jx20 ET30(probly will fit spacer) and 10Jx20 ET 30
Going for a flush setup

I realy like a little strech... but not to tuning-ish
But just a little is realy nice...

So i had in mind...
8.5j with 225/35 R20
10j with 255/30 R20

But people tell me the strech on that 10j is alot... and i should go for 265/30 R20... it would also be more like the front strech... equal front and rear

The tires are nankang ns2

Any tips ? Thx

 

[ds1]

checking your tyres min and max tyre fitment specs will tell you. go for the min and it will stretch nicely.