t.p.i how to interpret?

[teachndad]

Hi,

Can anyone shed any light on how to intrepret the t.p.i figure when
looking at tires? I assume it's threads per inch.

When you look at the nokian site
http://www.suomityres.fi/bike/dhspecs/index.htm
In the Gazz 3.0 row and the t.p.i. column it displays another figure
(tot.192tpi) along with 32 t.p.i. What is that?

This all came up when I am going to run a new hot rod tire made by Kenda
called the Kenda Flame. It is supposed to be 32 t.p.i which I am not
sure tells me anything significant. I was looking for a comparison to
the Noki gazz, not that they are comparable. It just happened to be what
I am familiar with.

Thanks.


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[DK]

I *think* TPI has tom do with the casing and sidewalls. Sorry i couln't
help more.


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[Gilby]

From a competitor's site,
http://www.maxxis.com/products/bicycle/faq.asp

>
> # What does TPI stand for?
> TPI stands for threads per Inch. It defines the number of threads
> contained in one inch of the tire casing. The lower the number of TPI,
> the larger the gauge cords in the casing. Thus, the more durable the
> tire becomes. The higher the TPI, the more lightweight the tire
> becomes and the more supple the ride of the tire. The majority of our
> tires are 60 TPI, and our race tires are 120 TPI.


I think the lower number is how much per layer and the total number is
counting all layers. So 32 tpi per layer, with 6 layers totaling 192
tpi.


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