Rims and Tyres

[bohtak]

Hi guys.. I'm currently running on 16" x 7j, with 205/50 tyres. What do you think if I upgrade to a set of 17" x 7j with 215/40?

[Simon]

You can work out the effects here.....

http://www.miata.net/garage/tirecalc.html

Simon.

[Alex]

If you look on the Saabnet Performance forums there are some pictures from a guy whos done just that (post should still be on the first page). Go very nicely with his lowering springs.

[bohtak]

Thanxs alot for the info. But I'm using the classic 900 4 door. Will 17"s be suitable?

[90t16Saero]

Im running 17" 205/40's on mine, you have to be careful of the suspension when running bigger wheels. My wheels do bang on the arch of i hit a rather large bump, other than that they are fine. You need to get the right offset. Very nice to live with though!

[bohtak]

yeah would love to see it with bigger rims. Is your rims offset 17x7j or is it 17x7.5j?

[Janne Selinummi]

I remember reading about 900 Cabrio bump stops here a while back... Should prevent wheel scrubbing with 17-inchers.

Are these different than fixed-head 900 units both front and back?

[tandino]

The 'Cabrio' bumpstop is a common misconception, they arent any different to the 'normal' bumpstop, all Saab did to stop contact on cars with either larger rims ie 16" aero's was to provide a spacer kit comprising of a longer bumpstop bolt and a metal spacer to go inbetween the bumpstop and body mounting area.
I to asked my Saab dealer about 'Cabrio' bumpstops and this is the response i got, also the modification kit is now no longer available! just buy 6 or 7 washers for each side and a longer bolt from your local hardware store.
Pete.

[93Saab900s]

ive seen a couple of saabs with 17s, i dont really like em on the 900s, i find that 900s look best with the 16" spg rims. 9000s is a different story, they look pretty good with 17s.