[spongebob]

what if i get some aftermarket 17" rims will it effect the speedometer???

 

[Calvin327]

How would it? I'm confused on what your trying to ask but if your looking for tire size, the best setup for 17's without any rubbing or getting spacers is 215/45/17.

Calvin

 

[nort0188]

www.miata.net/garage/tirecalc.html

 

[rapsux2000]

It makes a noticeble difference, check out the link in the post above.

 

[LonelyDriver]

17 inch rims won't affect your speedometer per se. you need to make sure you get the correct profile tire.

that's a very good link