224 rims on si - what tyre sizes?

[RyanB88]

Hi all

I’ve currently got my 224 wheels on standard ///M tyre sizes, as they came

They’re due for replacement soon so I was wondering what’s the best size to make these fit well onto an Si? They already fit but I’m wondering if there is a better fit in terms of look?

[philbo909]

Stock z4 sizes?
225/40/18 and 255/35/18
Or narrower, taller and cheaper
215/45/18 and 245/40/18

[mr wilks]

Stock z4 sizes?
225/40/18 and 255/35/18
Or narrower, taller and cheaper
215/45/18 and 245/40/18

Bear in mind the rear 224s are 9j not 8.5j

[philbo909]

Stock z4 sizes?
225/40/18 and 255/35/18
Or narrower, taller and cheaper
215/45/18 and 245/40/18

Bear in mind the rear 224s are 9j not 8.5j

245 fits fine on a 9j, I run them on CH-R's

[RyanB88]

So do most people run standard m tyre sizes? Would they look better on an Si with thinner tyres?

[philbo909]

So do most people run standard m tyre sizes? Would they look better on an Si with thinner tyres?

They look better with M sizes imo, less arch gap.
Some people prefer the lower profile look so would prefer SI size tyres.
Ride will be nicer with M tyres, but tyre cost goes up too

[Bing]

I put non-M sizes on my 224s when I had an Si, but only because it was lowered and had spacers so I didn’t want (even more) rubbing. You should be fine with M sizes but they are a bit pricier as noted above.

[the stripler]

z4m sizes on 2.5si

perrrfect

[RyanB88]

Thanks guys. I’ll buy Michelin’s again in the same tyre size!