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Old April 12th 18, 05:57 PM posted to rec.bicycles.tech
JBeattie
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Posts: 5,870
Default Desperate needs = desperate but workable solution

On Thursday, April 12, 2018 at 7:19:15 AM UTC-7, Joerg wrote:
On 2018-04-11 19:39, Frank Krygowski wrote:
On 4/11/2018 4:58 PM, Joerg wrote:
On 2018-04-10 21:08, Frank Krygowski wrote:
On Tuesday, April 10, 2018 at 11:26:54 AM UTC-4, Jeff Liebermann wrote:
On Mon, 9 Apr 2018 21:39:29 -0700 (PDT), Sir Ridesalot
wrote:

Just before leaving for an important appointment Monday I
discovered my rear tire was flat. Didn't have a spare tube and
needed to leave within minutes. Pulled off the clincher tire and
tube and put on a spare tubular tire I had hanging around. Worked
perfectly and allowed me to make the appointment on time. Weird
combination = tubular tire on a clincher rim but it worked well
enough to get me to and from the appointment.
Cheers

Ummm... perhaps you should carry some duct tape. There are some
articles and a few videos on how it's done.
https://www.google.com/search?q=duct+tape+bicycle+tire+patch
I've only used it once, on someone elses tire, because the rubber
cement had dried out in three out of three patch kits available. It
apparently worked as there were no threatening messages on my
answering machine when I returned home. The only real tricks that I
recall are to make sure the tube doesn't have any crud or baby powder
on the surface, and to NOT wrap the tape all the way around the tube
so that the tube can expand when pressurized.

I don't think it would have worked with narrow high pressure tires.
The one I patched was only pressurized to about 50(?) lbs. I don't
think the duct tape patch would have held at 100 lbs.


On one long tour, our Continental Top Touring tires developed
worrying bubbles
in the sidewalls.


Is that a Conti problem? I had similar issue with Gatorskins. Two
failed prematurely when their sidewalls started to give up.


During the year of that tour (2003) I think it was a pretty common
problem with Continental tires. I don't know if it still is.

IIRC, I did later find that I'd been overinflating the tires.


I had mine at the usual 90-95% of rated tire pressure. The CST tires
never blew but their thread was gone after a mere 1000mi and the
sidewalls had lots of fine cracks which was concerning. Next up is
Vittoria Zafiro (got one of them on there right now) and after that Vee
Rubber. I don't think any of them will ever achieve the 2500mi per tire
that Gatorskins delivered but not blowing sidewalls is more important.
Plus they are not such a bear to get onto the rim.


Have fun with the Zafiros -- they're flat prone, and they wear quickly. The good part is that they're relatively light, and they have a nice tread pattern like a Pasela, so they get better traction than a pure slick on wet leaves and grass. The bad part is that the compound has less wet grip than a Pasela. Gatorskins are better tires all around, notwithstanding your personal experience with sidewall damage. The only downside to Gatorskins, IMO, is price and the fact that they are almost a pure slick -- but by this time of year, most of the leaves are off the ground, and I can get by with a pure slick.

I had problems getting a Gatorskin onto a CR18 rim -- which is like your old rims and has a shallow rim well, but never a problem on any other rim. I would think your old rims would be toast now with all the miles and hard braking in Gnarlyville. You should spring for some new rims with deeper rim wells that will accommodate modern tires.


-- Jay Beattie.



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