Kaboom

Quoted message said:

"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for
the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate
in
the fuzziness of the photo (imagine yourself admiring a Monet if you
must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same
spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and
found
nothing the alarmed me, but that just means I couldn't find anything, not
that
nothing was there. So what was there?

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

My guess is that the tire might have been damaged during the installation
process. Tire levers are to be avoided at all costs during installation;
ironically, it's those ultra-tight-fit situations where they'll be most
likely to cause damage.

--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com

"Kristian M Zoerhoff" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Recently, I've acquired a number of bikes in need of fixing, mostly from
my
mother-in-law (who hasn't ridden in years, oddly enough). Tonight, I
finished
working on a Raleigh Custom (circa 1970), and moved on to a Motobecane
(circa
19something-or-other). First up were the tires/tubes, as the tires
appeared to
be original, and were badly cracked along the sidewalls. I decided to
start
with the front tire.

So, off come the old tires and tubes, on go new Performance tubes and
tires.
The fit was a tad tight (I needed levers to seat the tire), but not too
bad. I
checked the whole way 'round to make sure the tube was not trapped between
rim
and bead, and started pumping. The tire was rated to 90 psi.

I made it to about 80.

POW!

The fact that I was in an unfinished basement doubtless made the pop sound
more
impressive than it was, but it certainly made itself known.

"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for
the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate
in
the fuzziness of the photo (imagine yourself admiring a Monet if you
must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same
spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and
found
nothing the alarmed me, but that just means I couldn't find anything, not
that
nothing was there. So what was there?

--

__o Kristian Zoerhoff
_'\(,_ [email hidden]
(_)/ (_)

Kristian M Zoerhoff said:

So, off come the old tires and tubes, on go new Performance tubes and tires.
The fit was a tad tight (I needed levers to seat the tire), but not too bad. I
checked the whole way 'round to make sure the tube was not trapped between rim
and bead, and started pumping. The tire was rated to 90 psi.

I made it to about 80.

POW!

The fact that I was in an unfinished basement doubtless made the pop sound more
impressive than it was, but it certainly made itself known.

Quoted message said:

What I found was a lovely star burst pattern, somewhat hard to appreciate in
the fuzziness of the photo (imagine yourself admiring a Monet if you must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I think you have the order of causality reversed. The tire started out
with a hole in it. As you pumped up the tube it started working its
way out through that hole until the little bubble on the outside burst.
Either the tire was defective to start or someone returned it to
Performance and they didn't check it out thoroughly before putting it
back in stock.

peter said:

Quoted message said:

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I think you have the order of causality reversed. The tire started out
with a hole in it. As you pumped up the tube it started working its
way out through that hole until the little bubble on the outside burst.
Either the tire was defective to start or someone returned it to
Performance and they didn't check it out thoroughly before putting it
back in stock.

Possibly the tire had been cut during shipping- but nevertheless it had
a weak spot that let go. If it held to 80 psi, it might not have had an
easily-spotted defect.

Jeff

In article <[email hidden]>, mikej1
@ix.netcom.com says...

Quoted message said:

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

No, not at all. I never mentioned that it was earth-shattering, though :-)

Quoted message said:

My guess is that the tire might have been damaged during the installation
process. Tire levers are to be avoided at all costs during installation;
ironically, it's those ultra-tight-fit situations where they'll be most
likely to cause damage.

The other responders seem to agree. I'll try with a fresh tire tonight, and do
my best to wrestle the tire on by hand (I do have dish soap if it comes to
that).

--

__o Kristian Zoerhoff
_'\(,_ [email hidden]
(_)/ (_)

On Tue, 05 Dec 2006 04:40:59 GMT, "Mike Jacoubowsky" <[email hidden]>

Quoted message said:

Quoted message said:

"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for
the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate
in
the fuzziness of the photo (imagine yourself admiring a Monet if you
must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same
spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and
found
nothing the alarmed me, but that just means I couldn't find anything, not
that
nothing was there. So what was there?

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

As if we wouldn't know the damage done by an Illudium Q-38 Space Demodulator.

Ron

Quoted message said:

My guess is that the tire might have been damaged during the installation
process. Tire levers are to be avoided at all costs during installation;
ironically, it's those ultra-tight-fit situations where they'll be most
likely to cause damage.

--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com

"Kristian M Zoerhoff" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Recently, I've acquired a number of bikes in need of fixing, mostly from
my
mother-in-law (who hasn't ridden in years, oddly enough). Tonight, I
finished
working on a Raleigh Custom (circa 1970), and moved on to a Motobecane
(circa
19something-or-other). First up were the tires/tubes, as the tires
appeared to
be original, and were badly cracked along the sidewalls. I decided to
start
with the front tire.

So, off come the old tires and tubes, on go new Performance tubes and
tires.
The fit was a tad tight (I needed levers to seat the tire), but not too
bad. I
checked the whole way 'round to make sure the tube was not trapped between
rim
and bead, and started pumping. The tire was rated to 90 psi.

I made it to about 80.

POW!

The fact that I was in an unfinished basement doubtless made the pop sound
more
impressive than it was, but it certainly made itself known.

"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for
the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate
in
the fuzziness of the photo (imagine yourself admiring a Monet if you
must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same
spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and
found
nothing the alarmed me, but that just means I couldn't find anything, not
that
nothing was there. So what was there?

--

__o Kristian Zoerhoff
_'\(,_ [email hidden]
(_)/ (_)

Kristian M Zoerhoff said:

[snippety-doo-dah] The tire was rated to 90 psi.

I made it to about 80.

POW!
[mo'snip]
"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate in
the fuzziness of the photo (imagine yourself admiring a Monet if you must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and found
nothing the alarmed me, but that just means I couldn't find anything, not that
nothing was there. So what was there?

There was a defect or damaged spot in the tire sidewall which let go
when the pressure hit 80psi. It's rare, but it can happen. My
personal suspicion, based on the fuzzy pic of the tire, is that
somebody opened a box using a razor cutter and nicked the sidewall
when they did so. It wouldn't be obvious prior to inflation unless
the tire was flexed just right.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

I once was giving a bike repair demonstration to a local cub scout
group in my small, cramped shop.
There were 6 kids and 10 parents. The first job we did was to change a
tire, and I let each kid help a little.
As I moved on to the next job I didn't notice that one kid was still
aggressively pumping up the new tire.
A couple minutes later I heard this strange creaking sound and looked
over to see the the tube had pushed the tire off it's rim.
Then it exploded, covering all of us with dust and leaving our ears
ringing...
It turns out the 'bike shop' demonstration was the one they talked
about all year.

Vin - Menotomy Vintage Bicycles
http://OldRoads.com

Werehatrack said:

Kristian M Zoerhoff said:

[snippety-doo-dah] The tire was rated to 90 psi.

I made it to about 80.

POW!
[mo'snip]
"Dang it, Zoerhoff, you let the tube get trapped between the tire and the
rim!" So I dutifully unseated the tire, then dug out the tube, looking for the
telltale long tear of a bulge gone wrong. But I didn't find one.

What I found was a lovely star burst pattern, somewhat hard to appreciate in
the fuzziness of the photo (imagine yourself admiring a Monet if you must):

<http://www.flickr.com/photo_zoom.gne?id=314586100&size=l>

I thought this odd, so I grabbed the tire. When I checked it in the same spot,
I saw that the blowout had gone clean through the tire as well!

<http://www.flickr.com/photo_zoom.gne?id=314586281&size=l>

I did a cursory visual and tactile check of the rim in that spot, and found
nothing the alarmed me, but that just means I couldn't find anything, not that
nothing was there. So what was there?

There was a defect or damaged spot in the tire sidewall which let go
when the pressure hit 80psi. It's rare, but it can happen. My
personal suspicion, based on the fuzzy pic of the tire, is that
somebody opened a box using a razor cutter and nicked the sidewall
when they did so. It wouldn't be obvious prior to inflation unless
the tire was flexed just right.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

Mike Jacoubowsky said:

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

They *are* around in reruns you know. I think everyone know about earth
shattering kabooms.

Jasper

Quoted message said:

Quoted message said:

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

They *are* around in reruns you know. I think everyone know about earth
shattering kabooms.

Uh, no. I just checked with my 18-year-old daughter. She claims to know
about Marvin the Martian, but the "earth-shattering KaBOOM" phrase meant
nothing to her. Sigh. I'm sure she can recite every line in every Invader
Zim ever made.

For what it's worth, Invader Zim *is* cool. And owes a lot to Marvin the
Martian.

--Mike-- Chain Reaction Bicycles
www.ChainReactionBicycles.com

"Jasper Janssen" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Mike Jacoubowsky said:

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

They *are* around in reruns you know. I think everyone know about earth
shattering kabooms.

Jasper

Kristian M Zoerhoff said:

So, off come the old tires and tubes, on go new Performance tubes and tires.
The fit was a tad tight (I needed levers to seat the tire), but not too bad.

Just to ask the obvious - are you using the right size of tires? I can
see the casing getting damaged from trying to wrestle a 622mm (700c)
tire onto a 630mm (27"😉 rim.

OldRoads said:

I once was giving a bike repair demonstration to a local cub scout
group in my small, cramped shop.
There were 6 kids and 10 parents. The first job we did was to change a
tire, and I let each kid help a little.
As I moved on to the next job I didn't notice that one kid was still
aggressively pumping up the new tire.
A couple minutes later I heard this strange creaking sound and looked
over to see the the tube had pushed the tire off it's rim.
Then it exploded, covering all of us with dust and leaving our ears
ringing...
It turns out the 'bike shop' demonstration was the one they talked
about all year.

When I was about 12, I had scraped enough change together to replace a
badly worn tire. Walked it to the local gas station and used their
no-gauge hose. The hose was probably about 150-200 PSI. Inflate to 40
lbs. I'll go slow. The boom carried for blocks, and I had no hearing
in my left ear for weeks (OK, for the rest of the day). I also walked
for several weeks until I had saved up enough allowance for another new
tire and a new tube.

I can still hear the ringing in my ears today.

Austin

Mike Jacoubowsky said:

Quoted message said:

Quoted message said:

That doesn't look like the type of blow-out that would cause an
earth-shattering KABOOM. Certainly not enough to satisfy Marvin the
Martian. Sorry, probably a reference far too old for most here.

They *are* around in reruns you know. I think everyone know about earth
shattering kabooms.

Uh, no. I just checked with my 18-year-old daughter. She claims to know
about Marvin the Martian, but the "earth-shattering KaBOOM" phrase meant
nothing to her. Sigh. I'm sure she can recite every line in every Invader
Zim ever made.

I think it goes in phases, I haven't seen Marvin (or for that matter Bugs)
on TV for a while now, but he was around 5-10 years ago. Keep in mind
that's not American tv, though.

Quoted message said:

For what it's worth, Invader Zim *is* cool. And owes a lot to Marvin the
Martian.

I still wanted to download some of those. I'll bump them up on the list.

Jasper

AustinMN said:

When I was about 12, I had scraped enough change together to replace a
badly worn tire. Walked it to the local gas station and used their
no-gauge hose. The hose was probably about 150-200 PSI. Inflate to 40
lbs. I'll go slow. The boom carried for blocks, and I had no hearing
in my left ear for weeks (OK, for the rest of the day). I also walked
for several weeks until I had saved up enough allowance for another new
tire and a new tube.

I can still hear the ringing in my ears today.

How is it that households with even one bike in it apparently don't have
pumps? Or do american kids do the 'pump it at the gas station' thing out
of laziness? I've never heard of it happening here, but then, even a house
that doesn't ride bikes will usually have a pump just for guests. Possibly
an old discarded one from gramma, but something semifunctional at least.

Jasper