What tire size do I need?

[sinful rides]

My current front tire size is 235/45/17 around 25 1/2 diameter on 17x8 wheels I want to use a narrower tire but the same height. I was thinking something around 205 or 215 width. I want narrower because I switched to a manual rack and want it a little easier to turn when stopped

[celeste]

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

This will let you do a comparison of the current tire and any other tire you plan on running.

[Viper_ed]

Another good one that you can play with any wheel size and offset you want that shows you where things move and by how much.

http://www.rimsntires.com/specs.jsp

[celeste]

^^^^way better than my suggestion. Thanks Viper ed, I will update my bookmarks.

[Viper_ed]

^^^^way better than my suggestion. Thanks Viper ed, I will update my bookmarks.

No problem. I have been using it faithfully with trying to figure out the dam Wheel and tire combo with theIRS in my fox.

[sinful rides]

Thanks for the calculators. Looks like a 215/50/17 will work for me

[phillysrt4]

My current front tire size is 235/45/17 around 25 1/2 diameter on 17x8 wheels I want to use a narrower tire but the same height. I was thinking something around 205 or 215 width. I want narrower because I switched to a manual rack and want it a little easier to turn when stopped

that was the tire I actually wanted to go with when I had the SRT4 because it was closest to stock for overall tire diameter.

205/50/17 should give you about the same overall diameter. I'll double check it though

edit - 215/50/17 is only 0.1-0.2" larger, 205/50/17 is 0.1-0.2" smaller depending on tread