I my Fiero have 13" cheap tires but I think so new tires are a simple thing to dress it up but I went looking for tires and there are no rims or tires that are really in that siz at all..........I notice like every fiero on the net has bigger ones but what do you have to change if you want to change tires sizes anything?????......Speedometer????????
thanks for you help

Here's a handy tool courtesy of the Miata crowd: http://www.miata.net/garage/tirecalc.html

when you are changing tire size you keep the overall height of the tire the same and change the width. If you where going from 13 inch to 15 inch your sidewall of the tire will just be smaller.

for example a 205/70R13 tires is approx the same height as 195/60R15. or if they make a
225/60R13 would be again approx the same height. And so then would have little effect on the Speedo accuracy.

NOW THAT MIATA CAHRT IS NICE. GOOD FIND.

[This message has been edited by PBJ (edited 07-01-2001).]