Presta Problem

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny

Try talcing your tubes. A little slip might be just what you need.

R

Quoted message said:

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Try talcing your tubes.

Not according to Jobst and the curmudgeons on r.b.t. but I agree. I use
talc and no nuts on the stems.

Quoted message said:

A little slip might be just what you need.

Back in the old days with really narrow rims I had to put a little
tubular glue on the rims to keep the tubes/tires from spinning on the rims.

Greg
--
"All my time I spent in heaven
Revelries of dance and wine
Waking to the sound of laughter
Up I'd rise and kiss the sky" - The Mekons

"small change" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Why do my tubes keep ripping out right at the base of the valve stem all
of a sudden? 3 rides = three tubes. I've been told everything from run
them nutless to sand the inside of the rim. The inside of the rim has a
canvas-y strip against the spoke ends. I usually inflate to about 27 psi
or so.

thx

Penny

switch to schraeders........

jmo

Gary (never had a schraeder rip off at the base)

G.T. said:

Quoted message said:

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Try talcing your tubes.

Not according to Jobst and the curmudgeons on r.b.t. but I agree. I use
talc and no nuts on the stems.

I had the great (dis) pleasure of dealing with Jobst on a daily basis
back in the 1990's when I was service manager at PAB.

http://www.paloaltobicycles.com/

Jobst hates bicycle mythology ... and more power to him ... that being
said we still talc tubes and that little bit of platy silicate seems to
keep tubes from sticking to the tires.

<snip>

R

Quoted message said:

G.T. said:

Quoted message said:

small change wrote:

>Why do my tubes keep ripping out right at the base of the valve stem all of
>a sudden? 3 rides = three tubes. I've been told everything from run them
>nutless to sand the inside of the rim. The inside of the rim has a canvas-y
>strip against the spoke ends. I usually inflate to about 27 psi or so.
>
>thx
>

Try talcing your tubes.

At low pressures like that, I agree. I don't talc, but have to run
almost ridiculously high pressures because of my weight.

Quoted message said:

Quoted message said:

Not according to Jobst and the curmudgeons on r.b.t. but I agree. I use
talc and no nuts on the stems.

I use the nuts.

Quoted message said:

I had the great (dis) pleasure of dealing with Jobst on a daily basis
back in the 1990's when I was service manager at PAB.

http://www.paloaltobicycles.com/

I think Pabst needs a good ass kicking.

Quoted message said:

Jobst hates bicycle mythology ... and more power to him ... that being
said we still talc tubes and that little bit of platy silicate seems to
keep tubes from sticking to the tires.

Pabst is mythological as a legend in his own mind.

JD

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny

I never thought to try the talc solution, but when I had the same
problem the shop glued the tube to the ... I want to say tire, but it
must've been the rim.

--
Lynn Wallace http://www.xmission.com/~lawall
I have nothing but contempt and anger for those who betray the
trust by exposing the name of our sources. They are, in my view,
the most insidious of traitors."
George H.W. Bush, April 16, 1999,

Why such low psi? Try loosening the nut
so it sits against the valve cap.

--
- Zilla
Cary, NC USA
(Remove XSPAM)

"small change" <[email hidden]> wrote in message
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Quoted message said:

Why do my tubes keep ripping out right at the base of the valve stem all

of

Quoted message said:

a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a

canvas-y

Quoted message said:

strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny Switch before its to later. It could have snapped at the valve and it could have been your spare tube. It happened to me 9 years ago.

"Zilla" <[email hidden]> wrote in message
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Quoted message said:

Why such low psi? Try loosening the nut
so it sits against the valve cap.

why so low? I don't wiegh a lot compared to most of you freaks. 30-35# psi
is a really hard tire for me and for what I ride.

<[email hidden]> wrote in message
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Quoted message said:

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all
of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a
canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny Switch before its to later. It could have snapped at the valve and
it could have been your spare tube. It happened to me 9 years ago.

switch what? to schrader? usually I can translate crazy but not tonight.

small change said:

<[email hidden]> wrote in message
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Quoted message said:

small change said:

Why do my tubes keep ripping out right at the base of the valve
stem all of
a sudden? 3 rides = three tubes. I've been told everything from
run them nutless to sand the inside of the rim. The inside of the
rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or
so. thx

Penny Switch before its to later. It could have snapped at the
valve and it could have been your spare tube. It happened to me 9
years ago.

switch what? to schrader? usually I can translate crazy but not
tonight.

Usually impossible without drilling out the rim (totally unnecessary). One
trick I used to use before going tubless (sic) was to put a washer on the
valve INSIDE the rim, and another outside (optional). This buffers the tube
rubber from the sometimes-sharp edges of the valve hole. (That last
sentence is a Beavis 'n Butthead classic!)

If necessary rub a little Coke (cola, that is) on the tire bead to keep it
from slipping on the rim. Then spray with Raid! every few days and...

Bill "Rube G'burg" S.

In article <[email hidden]>,

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

At that low a pressure, is the tire rotating on the rim (i.e., is the
valve stem cocked at an angle)? This will rip out the stem.

Also, is there torn rubber or does the stem just pull out. You may just
have a batch of defective tubes.

Further, what kind of pump are you using? If the valve stem sees a
significant amount of wiggling, you could be damaging the tube when you
inflate the tire.

--
Mike DeMicco <[email hidden]>

small change said:

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Quoted message said:

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all
of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a
canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny Switch before its to later. It could have snapped at the valve and
it could have been your spare tube. It happened to me 9 years ago.

switch what? to schrader? usually I can translate crazy but not tonight.To the other side of the Atlantic, Schrader. The frogs suck in what ever they do. Drill the rims larger to fit the Schrader valve your love yourself in the morning.

Quoted message said:

small change said:

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small change wrote:
> Why do my tubes keep ripping out right at the base of the valve stem all
> of
> a sudden? 3 rides = three tubes. I've been told everything from run them
> nutless to sand the inside of the rim. The inside of the rim has a
> canvas-y
> strip against the spoke ends. I usually inflate to about 27 psi or so.
>
> thx
>

Quoted message said:

Quoted message said:

Quoted message said:

> Penny Switch before its to later. It could have snapped at the valve and
> it could have been your spare tube. It happened to me 9 years ago.

Quoted message said:

Quoted message said:

switch what? to schrader? usually I can translate crazy but not tonight.To the other side of the Atlantic, Schrader. The frogs suck in what ever they do. Drill the rims larger to fit the Schrader valve your love yourself in the morning.

<best Rodney Danger Field voice ON>

Hey pal, I already love myself in the morning... actually, I usaully love myself [at least once] in the evening, too. If I love myself anymore, I'll need to start using my wife's "moisturizer!"
____
Slack

small change said:

Why do my tubes keep ripping out right at the base of the valve stem all of
a sudden? 3 rides = three tubes. I've been told everything from run them
nutless to sand the inside of the rim. The inside of the rim has a canvas-y
strip against the spoke ends. I usually inflate to about 27 psi or so.

thx

Penny

Had the same issue when I was running a tire that happened to sit very
loosely on the rim and must have moved around quite a bit when
accelerating or braking. If installing/removing the tire is an
effortless joy, you may suffer that joy often.

/s