That Miata calculator does not give me the numbers close to the factory numbers at all. What are you using for aspect ratio? I thought you got this already. The Miata.net toy does not have an option for 82 so 80 is the closest. When I put that in for 185/80R14 it gives 786 not 809. You only get 809 if you use the very wrong aspect ratio of 75. Mark Dave Mcneely wrote: > ---- Robert Stevens<mtbiker62@GMAIL.COM> wrote: >>> >>> I've been using http://www.1010tires.com/tiresizecalculator.asp to >>> see sizes, revs& all that stuff for different sized tires. >> > > And, for whatever it is worth, this calculator gives 810 and a fraction revolutions per mile for the Hankook RA08 (or any other tire) in the 185R14 size, and 790 and a fraction for a 195R14 size. That's very close, but not exactly the same, as the 809 that the Miata site gave for the 185 tire (the difference is less than 1%). > -- > David McNeely > |
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