On Fri, 22 Sep 2000, Power British Performance Parts, Inc. wrote:
> > Also, I am planning on putting on 195/60/15's on. I know that to
>be as
> > close to the orig. overall tire diameter as possible I should use 195/65's,
> > but I am thinking that I will like the performance and looks of the 60's
> > better. Will there be a noticable difference in speedometer accuracy? Or
> > for that matter, am I just fooling myself on the difference in performance?
> >
> > Rob Swift
> > '75 TR6
>
> Hello Rob,
>
> Try another shop to mount your tires. You should have no trouble using
>tubeless tires
> on the stock TR-6 rim.
>
> However, I would like to mention that your choice of tire size may not be as
>close to
> the stock diameter as you think. By my calculations, 195/60-15's will be an
>inch
> shorter in radius (2" in overall height) compared to the stock red-line. I
>recommend
> using 205/70-15's as that size in nearly identical to the stock red-line
>rolling
> radius. There is nothing wrong with using a smaller diameter tire, but as
>Scott said,
> your speedometer will be off - reading higher than your actual speed as a
>result of the
> smaller diameter.
>
> Good luck!
>
> Brian Schlorff
> Power British
> http://www.powerbritish.com/~britcars
>
I run 195-75X15's. This was a recommended size when the 185x15
(metric) sizes became unavailable. Diameter is almost exactly the
same. This tire was originally a light truck tire size.
Cheers.
James A. Ruffner
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