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Re: [T3] sizing snow chains


On 2 Mar 2003 at 23:23, BOB2TYPE3S@aol.com wrote:

> I've been waiting to see if anyone had the same number that I did, and I 
> figured Jim A. would. That default number is 80. Another way of looking at it
> would be to convert the 5.60-15 bias ply number out and you'd probably get an
> aspect ratio of 80. 

Maybe I'm reading your message wrong, Bob, but you can't figure out the ratio 
from the numbers above. The 15 is the tire ID, while we need both the ID and 
the OD ( as well as the width) to calculate the aspect ratio. 

Plus there may be even more to it than that: A quick look at the ruler in my 
desk drawer confirms that 5.6" is not 155mm and 6" is not 165mm, so I'm not 
completely sure what's going on here.  

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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