I have a space saver wheel which I assume is suited to the standard size wheels for my RX-7 (16"). I am currently running on 17" wheels and also have a spare set of 18" wheels. My question is will I damage anything (diff?) if I use the spacesaver wheel with anything other than 16" wheels? Can you run on different size wheels for emergency purposes?
I have never really thought about it before but there is little point in carrying the spare if I shouldn't use it.
mf.
space saver wheels
Easiest way to work this out is to use one of the online tyre size calculators,
Pop in the size of the space saver (or the original sized tyres if it's easier) and then the size of the tyres you want to run and see how much the difference is.
http://www.miata.net/garage/tirecalcold.html is the one I use although you might have to update Java to get it to work.
My guess is that if your new ones were pretty close for the speedo acuracy you need then hopefully the space saver would be ok to use.
Ady.
Pop in the size of the space saver (or the original sized tyres if it's easier) and then the size of the tyres you want to run and see how much the difference is.
http://www.miata.net/garage/tirecalcold.html is the one I use although you might have to update Java to get it to work.
My guess is that if your new ones were pretty close for the speedo acuracy you need then hopefully the space saver would be ok to use.
Ady.
1998 - 4.6L V8 - Manual Box - Ford Mustang
225 BHP @ 4750rpm - 290 ft lb @ 3500 rpm
225 BHP @ 4750rpm - 290 ft lb @ 3500 rpm