Miata Mailing List: April 1999, Message #2932

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On 19 Apr 99, WHITE95R@aol.com said:

> In a message dated 4/19/99 4:59:18 PM British Summer Time, 
> cdawkins@barnard.edu writes:
> 
> << What is the best tire size for both 15 & 16 inch wheels? Can I do a
>  205/50/16 and a 195/55/15?? >>
>  Both of those sizes are a bit too big in diameter. Try 205/45-16 or
> 215/40-16 and 195/50-15. I have 205/50-15's in my car. They are about 1/4"
> larger in dia than stock but seem to work OK.
> 
> Manuel
> 
> BTW, the stock dia is 22.74". to find out the dia of any given tire
> multiply the first number by the second number divided by 10. Multyply
> times two and divide by 25.4 to get inches; add the dia of the wheel and
> that is your answer. eg, 185 x .60 =111; 111 x 2 =222; 222/25.4= 8.74";
> 8.74 + 14"= 22.74" or the stock dia of the Miata tires.
....
Or go to the tire size calculator on Miata.net (which is much faster now!!)

Thanks, Gary!

Werner