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Re: 195 tires on stock wheels (1985 900)
Posted by Dave 37 (more from Dave 37) on Thu, 27 Sep 2001 12:26:38
In Reply to: 195 tires on stock wheels (1985 900), Erik K, Thu, 27 Sep 2001 11:47:09
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Erik K's title says "1985", but his text says "1995". I assume it's 1985 because the post in on the Classic 900 board.
My 1990 900 came with 15x5.5 wheels and 185/65SR15 tires. I've used 195/60HR or VR15 tires for several years. 195/65 tires would be a bit taller than stock and affect the speedometer somewhat.
I thought that one could roughly calculate the height of the tires by:
195 cm x .60, then multiply by 2 (the donut or tire sidewall at the top and bottom).
You can see that I'm not too bad in math, but a lousy math teacher.
If you want the total diameter in inches, use x cm divided by 25.4, then add 15 inches.
Or you can get the tire data and see how many revolutions per mile.
posted by 12.93.4...
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