mr wilks said:Aim for 8j front , 9j rears & et numbers around 40
8.5j fronts , 9.5j rears will be more common & will work but definitely don't go under et40 for the fronts , rears will be fine down to low 30s
Once wheel sizes are known choose the tyre sizes to suit & don't just go off whoever is supplying the wheels :wink:
Buckz said:mr wilks said:Aim for 8j front , 9j rears & et numbers around 40
8.5j fronts , 9.5j rears will be more common & will work but definitely don't go under et40 for the fronts , rears will be fine down to low 30s
Once wheel sizes are known choose the tyre sizes to suit & don't just go off whoever is supplying the wheels :wink:
I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing![]()

jamie_z4 said:Buckz said:mr wilks said:Aim for 8j front , 9j rears & et numbers around 40
8.5j fronts , 9.5j rears will be more common & will work but definitely don't go under et40 for the fronts , rears will be fine down to low 30s
Once wheel sizes are known choose the tyre sizes to suit & don't just go off whoever is supplying the wheels :wink:
I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing![]()
ive got et30 18x10J rear 225 rubber
no rubbing![]()
![]()
Buckz said:jamie_z4 said:Buckz said:I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing![]()
ive got et30 18x10J rear 225 rubber
no rubbing![]()
![]()
rears are usually fine on z4's it's the front that causes the problems :evil:
jamie_z4 said:Buckz said:jamie_z4 said:ive got et30 18x10J rear 225 rubber
no rubbing![]()
![]()
rears are usually fine on z4's it's the front that causes the problems :evil:
true - im on a 205 40 18 front 8.5J et25 - seems i could have got away with a 215 then going off your fronts![]()

Buckz said:jamie_z4 said:Buckz said:rears are usually fine on z4's it's the front that causes the problems :evil:
true - im on a 205 40 18 front 8.5J et25 - seems i could have got away with a 215 then going off your fronts![]()
probably, keep in mind that I'm stock sport suspension.
I have a feeling that on eibachs it'll rub a little and I might have to go for 215's up front. We'll see next year![]()
Joycey said:My new fronts are ET37 going to be snug under there![]()
Buckz said:mr wilks said:Aim for 8j front , 9j rears & et numbers around 40
8.5j fronts , 9.5j rears will be more common & will work but definitely don't go under et40 for the fronts , rears will be fine down to low 30s
Once wheel sizes are known choose the tyre sizes to suit & don't just go off whoever is supplying the wheels :wink:
I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing
https://www.dropbox.com/s/8gsxy7j26sa1hlj/20170727_154513.jpg?dl=0
mr wilks said:Buckz said:mr wilks said:Aim for 8j front , 9j rears & et numbers around 40
8.5j fronts , 9.5j rears will be more common & will work but definitely don't go under et40 for the fronts , rears will be fine down to low 30s
Once wheel sizes are known choose the tyre sizes to suit & don't just go off whoever is supplying the wheels :wink:
I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing
https://www.dropbox.com/s/8gsxy7j26sa1hlj/20170727_154513.jpg?dl=0
OP has asked about 19s not 18s , does make a difference depending on tyres , springs , roadster , coupe etc , so many factors as discussed many times . there is no one size fits all Zs magic formula :roll:
Buckz said:mr wilks said:Buckz said:I've got 18's
18x8.5 front et30.. 225 rubber
no rubbing
https://www.dropbox.com/s/8gsxy7j26sa1hlj/20170727_154513.jpg?dl=0
OP has asked about 19s not 18s , does make a difference depending on tyres , springs , roadster , coupe etc , so many factors as discussed many times . there is no one size fits all Zs magic formula :roll:
you go up in size and go down in sidewall?
his is a coupe, 3.0, sport. Same as mine![]()