From: dahls@fhydra.dnet.unit.no (Joern Yngve Dahl-Stamnes)
Subject: Re: Questions on Sew-ups
Reply-To: dahls@fhydra.dnet.unit.no (Joern Yngve Dahl-Stamnes)
Organization: University of Trondheim, NORWAY
Date: Thu, 30 Jul 92 10:00:58 EDT

Thus spoke the keyboard of sgg5e@galen.med.Virginia.EDU (Stephen G. Graber):
>Thought I'd toss my 2 cents worth your way as well!  I've been hooked
>on tubulars for years,IMHO there biggest advantage is by way of
>comfort- they have more ability to deform (since they don't bulge out
>into the sides of the rim) than clinchers and hence really soften the
>road by comparison.  In terms of rolling resistance they may not
>perform any better than good clinchers unless you buy good tubulars
>and glue them on carefully.  In that regard I've found that the better
>tubulars are worth the extra $ in terms of longevity and performance.
>I use the Vittoria CG and CX tires- they last 2-3 times longer than
>the cheaper ones, ie. Vittoria Mondiales, Wolber NeoPro SP1s etc.  I
                                           ^^^^^^^^^^^^^^^^^^

I've been using the SP1 for two years now, and I have not been able to wear
one of them out yet. The problem is that there is so much glass, sharp
stones etc. that my tires flat before they get weared out.

BTW, what is the price of the SP1 compared to the Vittoria CG and CX
tires? Price often tell something about the quality of a tire.

>Gluing is the down side though not as bad as trying to patch the damn
>things!  All the available cements seem to work well, I used to use
>Wolber but now use 3M "Fast-Tack" (available at automotive stores,
>intended for gluing carpeting to metal).  It holds better than the
>cements, cleans off the rim more easily and dries faster.  I disagree
>with the poster on the net who said he learned not to glue his tires
>"too tightly".  If you roll your tire off the rim in a hard corner
>you're going down and will probably hurt yourself and others.  It is
>hard to remove a well glued tire but not impossible.  If you use
>quality tires and inspect them frequently flats shouldn't lose too
>many races for you.

I'm the one who learned not to glue the tire too good on the rim - only good
enought so that the tire don't roll of the rim in a hard corner. You don't
need to have a lot of glue on the tire/rim to prevent it. After all, my
teammates have been racing for many many years, and so far NOONE have ever
experienced that their tire roll of the rim during a hard corner! So don't
have too much glue on the tire/rim if you want to get a flat tire off the
rim in a hurry. After all some minutes extra can put you severa places down
in a race!

> [stuff deleted]
>I deflate my tubulars after every ride.

I can't see any point in doing so. I used to do this before, but not
anymore. Since I now do some training inside during winter time, I don't
deflate them.

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* I went back to my mother,           * Joern Yngve Dahl-Stamnes           *
* I said, "I'm crazy ma, help me!"    * University of Trondheim            *
* She said, "I know how it feels son, * The Norwegian Institute of Tech.   *
* 'cause it runs in the family."      * Division of Physical Electronics   *
*       - The Who, Quadrophenia       * e-mail: dahls@fhydra.dnet.unit.no  *
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Newsgroups: rec.bicycles