Turbosport

for my summer setup i'm keeping my 18" RS4 wheels from the ultrasport package, but i have no interest in simply getting 18" winter tires to throw on the RS4's, as i love the wheels too much to put them into winter use. I was initially considering using a 17" winter setup because I don't really want to have to get my speedo recalibrated due to downsizing too much. Would I still be able to downsize to 16's without having to worry about recalibrating, or should I stick with my initial plan of 17's. Thanks in advance.

Digit@lex

I'm off like 2.4% and things are still fine. Are you worried about the miles being logged?

fourwheelslide

Speedo will read .4% too fast...or about .2 mph when doing 60 mph...well within the allowable margin. Hope that helps!

Turbosport

just want to make sure everything is calibrated correctly if i decide to go to 16's...not 100% which way i'm gonna go, but i'm not quite sure I want to spend the $$ to go to 17" wheels and tires for winter use....if i can find a good set of 16's, I may do that...you think 205/55/16's would be ok? (swing wheels on tires)...if i see a nice set available, i may hit.

Turbosport

you think that'd be alright?

Shaun

I ran those wheels w/ that size tire for one winter and they worked great.

Turbosport

that's my chief concern with going to the swings

fourwheelslide

Your speedo would read 2.1% too fast...i.e. you'd be at 58.8 mph when speedo reads 60.

fourwheelslide

<ul><li><a href="http://www.miata.net/garage/tirecalc.html">Tire Size Calculator</a></li></ul>

Turbosport

thanks...that doesn't seem too bad