Author Topic: 135's Outer Diameter?  (Read 1702 times)

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Offline Mike Scott

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135's Outer Diameter?
« on: March 05, 2004, 11:40:39 AM »
Maybe a wheel and tire question, you guys and gals that run 135's up front. Does this effect your speedo or is the outer diameter pretty close to stock?

Thanks
Mike

Offline dannyboy

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135's Outer Diameter?
« Reply #1 on: March 05, 2004, 12:47:37 PM »
135s are a lot smaller than stock, your speedo will read faster than you are actually doing
dont know how much, there used to be a site with a calculator for that sort of thing but i cant remember what it is
maybe someone else will know
-dan

Offline Bruce

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135's Outer Diameter?
« Reply #2 on: March 05, 2004, 01:21:48 PM »
12-15% fast

Offline Scratchy

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135's Outer Diameter?
« Reply #3 on: March 05, 2004, 07:03:45 PM »
http://www.miata.net/garage/tirecalc.html

It only goes down to 145, but it's a great calculator none the less.

 -= Remember, even at a Mensa convention someone is the dumbest person in the room! =-