Miata Mailing List: September 1994, Message #142
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   From: Miq Millman 
Subject: Re: tire sizes
   Date: Wed, 7 Sep 1994 21:44:59 -0400

Dan Singleton says:
> On Wed, 7 Sep 1994, Doug Quara wrote:
> 
> My other car is a Corvette, so I like big tires(wide). I want to put the 
> widest tires that I can on my miata. I don't race and only use my miata 
> for commuting back and forth to work. I wonder if you could use 225/50/14 
> size tires and would the diameter be close to the stock 185/60/14 tire? 
> If anyone has first hand experience I would be interested in hearing 
> about it.
> 
> 		Dan Singleton
> 		93 Black/Red LE

pecification  Sidewall  Radius  Diameter  Circumference  Revs/Mile  Difference

185/60-14         4.4in  11.4in    22.7in         71.4in        887        0.0%
(stock size

195/55-14         4.2in  11.2in    22.4in         70.5in        899       -1.3%
(Dunlop's Miata specific size I like em)

205/55-14         4.4in  11.4in    22.9in         71.9in        882        0.6%
(about the widest you should put on the stock rims (5.5 or 6)

225/50-14         4.4in  11.4in    22.9in         71.8in        882        0.5%
(New size put out by Toyo, I'd get a 7" rim for these)


BTW, I have a set of 14x7 rims with 22.5x9x14 slicks on the car for track time.
The tires don't rub, but the rims have a 35mm offset (10 mm wider than stock).



-- 
Miq Millman   mmillman@ptdcs2.intel.com	  503 642 6139   (Aloha site)
AL4-55  Intel, 5200 NE Elam Young Parkway, Hillsboro, OR 97124-6497
See also miq@teleport.com