Explosive tires

Interesting events several minutes ago. I went to the bike shop to fill up
my old Schwinn 24" but had forgotten my gauge, so I jsut put in a lot of
air. On arriving home, I noticed, while riding up in the elevator, that
the tire was bulging in one spot but seemed ok. Moments later I greeted
the wife and kids (ages 5 and nearly 2) and lay the uni gently on its side
on the floor. There must have been a silent countdown, because about ten
seconds later I heard a gunshot.

Reactions: My wife asked, “What was that?” (I answered: My unicycle just
exploded.") 5-year-old daughter: [Raised eyebrow] The little guy: (long
pause) Oh, dear!

I guess the good news is that this happened today so I can get it fixed
before the NUC. The innertube was definitely older than my daughter.

David

On 11 Jul 2001 11:16:50 -0700, dstone@packer.edu (David Stone) wrote:

>air. On arriving home, I noticed, while riding up in the elevator, that
>the tire was bulging in one spot but seemed ok. Moments later I greeted
>the wife and kids (ages 5 and nearly 2) and lay the uni gently on its
>side on the floor. There must have been a silent countdown, because about
>ten seconds later I heard a gunshot.

Just asking: how high (up in the building) do you live? Atmospheric
pressure drops approx. by 1% for every 85 metres of height IIRC. Such a
drop would increase the difference in pressure in and out, and possibly
make your tire explode if already pumped to the limit. If your elevator
really goes high it could be a factor.

Klaas Bil

“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “Iraq, John Walker, Dani Halutz”

At least you got air in your tires. I once stopped to fill up with air at
a gas station, (They advertise “Free Air”. What the heck.) and got a nasty
shock. You know, the air and water filler guns look so-o-o similar!!!

I went the rest of the ride looking like I had wet my pants.

Graham W. Boyes

“David Stone” <dstone@packer.edu> wrote in message
news:fc.000f4e6700532e9d000f4e6700532e9d.532ecb@packer.edu
> Interesting events several minutes ago. I went to the bike shop to fill
> up my old Schwinn 24" but had forgotten my gauge, so I jsut put in a lot
> of air. On arriving home, I noticed, while riding up in the elevator,
> that the tire was bulging in one spot but seemed ok. Moments later I
> greeted the wife and kids (ages 5 and nearly 2) and lay the uni gently
> on its side on the floor. There must have been a silent countdown,
> because about ten seconds later I heard a gunshot.
>
> Reactions: My wife asked, “What was that?” (I answered: My unicycle just
> exploded.") 5-year-old daughter: [Raised eyebrow] The little guy: (long
> pause) Oh, dear!
>
> I guess the good news is that this happened today so I can get it fixed
> before the NUC. The innertube was definitely older than my daughter.
>
> David

klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>air. On arriving home, I noticed, while riding up in the elevator, that
>>the tire was bulging in one spot but seemed ok. Moments later I greeted
>>the wife and kids (ages 5 and nearly 2) and lay the uni gently on its
>side
>>on the floor. There must have been a silent countdown, because about ten
>>seconds later I heard a gunshot.
>
>Just asking: how high (up in the building) do you live? Atmospheric
>pressure drops approx. by 1% for every 85 metres of height IIRC. Such a
>drop would increase the difference in pressure in and out, and possibly
>make your tire explode if already pumped to the limit. If your elevator
>really goes high it could be a factor.
>
>Klaas Bil

Only on the fourth floor (about 15m above ground)! David