Hi I'm looking for new wheel for my 2007 skoda Octavia Ive been looking at wheels 18" and 19" but I need to know what et I would need to go for cheers

The suitable range of ETs depend on the width of the rim.

I've been looking at wheels a 8 1/2 j wide

I've got 8J with an offset of 45 (17" though).  This combination is a good compromise as they sit just within the arches & don't look too lost.  There are a couple of pics here :

https://www.briskoda.net/forums/topic/426343-new-wheels/

 

 

Ok cheers gives me an idea 

19x8J ET35 will *just* protrude from the arch but shouldn't give you any issues with rubbing:

 

Ignore the wonky pictures, car has been set up on a Hunter machine and is all to spec...

 

2 hours ago, hrvrs said:

ok cheers for the info