jeeper31

I presently have 15 inch wheels with 225/60R15s on them. Thinking about changing to 16" rims with 205/55R16s and 225/50R16s. The question is what effect would this have on handling, speed and mileage?

Thanks

jharding

Dan,

Check this link out for speed difference and rolling circumference size.

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

As far as gas mileage goes I don't think I noticed any difference going from 15" to 16" with 205 and 225 tires on my car.

jeeper31

I will. thanks

Matt H

The tires you have now are too tall. What you are proposing is a much better fit.
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jeeper31

I know. Was thinking of either going with the 16 in setup or getting the proper 215/60R15s for the rims I have now. I guess the question should have been the differences between the 16 inch setup (205/55R16,

By the way I have 15" PD's now and would be getting 16" PD's.

Danno

You'll notice sharper turn-in (more responsive). Better ultimate grip. Better acceleration. Higher stop-speed. Worse gas mileage...

jeeper31

Are you talking with the 16" rim setup?

Danno

Yes, with the 16" set-up. Whoops, I meant higher top-speed as you'll have lower effective gearing and will allow the engine to rev a little higher.