john wrote:
> Mechanics probably be a better source for what tire rim combination is
> an easy or hard mount.
Good point! My comment about the Michelin Carbon was echoed by a
mechanic at River City...
>
> I have been known to quit using a wheel or rim (especially in the
> winter when flat is more likely) if the tire
> is too hard to take off or on. Often the steel bead tires are better
> for this.
>
> Never ever use a tire iron to mount a tire. First get the tube in
> proper, inflate for form. then work the bead that is already "on"
> toward the center (where the diameter is smaller) while simultanously
> use the other hand to keep pushing on the bead that is "not-on" yet.
> it must be emphasized: You _really_ have to work the "on" bead toward
> the center, and make sure the tube isn't stuck underneath the bead.
When I get to the critical part, with a small amount of bead yet to
shove over the rim edge, I then undo about 1/4 of it, and use that as
the new "center" as I know that region has the tube tucked neatly inside.

~David
=========================

>
> It helps to use thin rim tape to keep that diameter smaller, most my
> wheels i now use filament packing tape (i get the 3M stuff from
> mcmastercarr). Make sure you put down one layer of electrical tape
> (dirt cheap at harbor freight) otherwise the packing tape is almost
> impossible to get off the rim later. Deburr the spoke holes too.
> And be careful, do two layers depending on tape. Also I learned the
> hard way to never re-use old cloth rim strip if its lost most of its
> stickniness... if it slips off the spoke hole you will flat instantly,
> this is very disconcerting when descending a curvy road...
>
> Any clincher, if it flats, you can't ride on anymore, at least not
> like a tubular. Ok you can ride at maybe 5mph, but you might end up
> cutting the tire sidewall, and of course small indentions into rim.
> The only clinchers i have had come totally off the rim after a flat
> and if i keep riding on them, is MTB tire or cyclocross tire.. ie
> probably 32c or bigger..
>
> Way back, known some that would carry a spare tubular tire and just
> put that on a clincher rim to get home. Makes the fixing the "flat"
> very fast.
>
> I have had some poorly made rims too that the tire wouldn't stay on.
> This is very disconcerting too when the tire blasts off like a
> shotgun. I knew it was the rim hook bead because the second tire i
> tried was a gatorskin.
>
>
> ----- Original Message ----
> From: David Auker
> To: OBRA Chat
> Sent: Thursday, February 28, 2008 5:37:00 PM
> Subject: Re: [OBRA Chat] Tubulars vs. clinchers
>
> Speaking of clinchers' potential for coming off the rim when
> experiencing a flat, what about going ONTO the rim, the mounting? I
> find the Michelin Carbon to be quite hard to mount, very tight, scary
> that I might "snake bite" the tube...really wouldn't want to be out on a
> cold rainy day and have a flat on one! On the other hand, Vredestein
> clinchers go on VERY easily, almost disturbingly so (they ARE rated at
> high psi, but could come off rim easily on sudden flat??). Any
> preferences out there for easy/tough mounting?
>
> Mike Murray wrote:
> > john [twotiretinker-obra2@yahoo.com
> ] wrote:
> >
> > "Getting a flat on the track with a clincher would be quite the feat in
> > itself. if you really try hard, of course possible :"
> >
> > Must not be that much of a feat. I have seen it happen several times.
> >
> > Mike Murray
> >
> > _______________________________________________
> >
>
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