225/40/18 or 235/40/18 on 18 x 8?

[thezoneR32]

Looking at some OZ Ultraleggera 18 x 8's. Which size tyre is the best for my R32?

[schoona]

find a tyre size calculator and plug the sizes in.
I'd go a 225/40/18 looks better, squarer sidewalls, more common size so choice of tyre and price.

Here you go:
Tire Size Calculator - tire & wheel plus sizing

[thezoneR32]

find a tyre size calculator and plug the sizes in.
I'd go a 225/40/18 looks better, squarer sidewalls, more common size so choice of tyre and price.

Here you go:
Tire Size Calculator - tire & wheel plus sizing

Thanks, I understand your comments about the better looks etc but I dont get the tire calculator?

Cheers

[GTI JOE]

Looking at the tyre calculator, shows (in my case) going from the stock 215/40/17 to 225/40/17 will decrease the odometer reading by a couple of km/h eg. 100km/h will show as 98km/h. The question is, will the 225s fit on the stock 17X7 rim and is it legal?

[schoona]

2km/h is 3/5 of f all it is fine. Is the tyre listed on your placard? Does the tyre comply with load rating requirements (no less than OEM speC)?

Then yes it is legal.

225/40 for a 7 is going to look pretty average unless you are looking at semi slicks and a track based look.

215/40 or if you must 225, 225/35 so you don't end up with a truck tyre. See what calculations you get.

I think MkV GTI is about 7% out from factory (100kmh = 93) so going to something that reads "slower" actually brings it back to being more accurate on the speedo.

[dylan8]

225/45/17 on a 17x7 is standard on a vw bora, so cant imagine a 225/40/17 on a 7 would hurt.

to the original post, all you'd gain from a 235 on a 8 is 10mm more contact, more side wall (more comfit), and increasing your rolling diameter (which will generally correct your speedo slightly), and apparently they are lots cheaper due to being a popular size.
otherwise id be going a 225/40, better looking, closer to stock, will allow for more lows (vs a 235) if you go that way

[qt25]

Hi guys

Im a new member here, just picked up my MK6 GTI 2 weeks ago. Im currently running 235/40/18 for my 18x8 ET48 wheels. I think they look good, will post pics tonight.