Wheels - Rims What size for stock speedo

[Fahtrim]

I am wanting to get Chtrome 20's or 22's and am wondering what size wheel/tire combo to get that will give the same reading back to the speedometer, you know same height overall.

I have the Z71 17" stockers on there now. I don't want to reprogram as I want to be able to put the stockers on for the times when the salt is out on the roads.

Thanks and let me know,
Brett

 

[DeeLux]

Try this site:http://www.miata.net/garage/tirecalc.html

I was looking at 22's and 305/40/22 will match the stock height to a tee

some guys here were going 305/45/22 just to get a little extra rubber for a better ride, I'm not sure how much of a difference can be felt.

laterz

 

[Da_Lanche]

I just put on 22 inch rims with 305/45/22 falken tires. I had to trim a little plastic off the inside front wheel wells, the ride is about the same, my speedometer seems to be reading how it used to as well.

 

[wonder91178]

I have 20s and Goodyear GT II (285/50/20) and didn't need to get the speedometer recal'ed...

Kim