Exploding Innertube
Cycingfan
Posts: 4
Dear All
A strange thing occurred yesterday. I was in the garage with my wife when suddenly we got the shock of our lives. :shock:
It sounded like lorry airbrakes going off without warning (please note there are no lorries in the garage, just two bikes!) .
It turned out to be the back innertube of my Orbea Acqua exploding for absolutely no reason whatsoever. I had not ridden it for 3 days and we were two foot away. :?
The bike is only a few weeks old and the back wheel is being replaced because the rim is not smooth at the joint on the side but this seems pretty odd to me.
Has anyone else come across this?
Cyingfan
A strange thing occurred yesterday. I was in the garage with my wife when suddenly we got the shock of our lives. :shock:
It sounded like lorry airbrakes going off without warning (please note there are no lorries in the garage, just two bikes!) .
It turned out to be the back innertube of my Orbea Acqua exploding for absolutely no reason whatsoever. I had not ridden it for 3 days and we were two foot away. :?
The bike is only a few weeks old and the back wheel is being replaced because the rim is not smooth at the joint on the side but this seems pretty odd to me.
Has anyone else come across this?
Cyingfan
0
Comments
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Yes.
It's happened to me a number of times. I've usualky got 10+ road rental bikes waiting at the ready... many of them have 100psi in the tyres. I've had the odd one go... it was caused by inadequate coverage of rim tape on a shimano 105 wheelset (offset spoke bed).
One time, a rear innertube also exploded shortly after delivery of rental bike (this was the same bike).0 -
The tyre has about 125psi in it. Or rather had
The max is 140 psi but my pump does not go up that high!!
With the rim problem makes me think just got unlucky with this wheel. They don't make things like they used too!!
Anyway being changed on Saturday.0 -
synchronicity wrote:Yes.
It's happened to me a number of times. I've usualky got 10+ road rental bikes waiting at the ready... many of them have 100psi in the tyres. I've had the odd one go... it was caused by inadequate coverage of rim tape on a shimano 105 wheelset (offset spoke bed).
One time, a rear innertube also exploded shortly after delivery of rental bike (this was the same bike).
If you fill the tires on a cold day then the internal pressure will rise on a warm day governed by the ideal gas law PV =nrt... Could possibly lead to popping if your rim is rough!17 Stone down to 12.5 now raring to get back on the bike!0 -
I live in the UK. It is never warm here!!!!
Will bear this is mind and perhaps pump up a little lower in future.0 -
fuzzynavel wrote:
If you fill the tires on a cold day then the internal pressure will rise on a warm day governed by the ideal gas law PV =nrt... Could possibly lead to popping if your rim is rough!
True, the unit of Temperature is Kelvin. Room temp is commonly taken as 300K or ~ 27°C
0° celcius is equal to 273K.
I.e. going from 0° celcius to 27°C is a change of 300/273 = 10% change. Pressure will change by the same relative amount.0 -
happened to my rear tyre on my fleche the other night around midnight, scared the life outta me!!!0
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Are you sure you didn't get your PSI and BAR muddled up!?
The US Air Force do it all the time on their aircraft tyres :shock:Boardman Road Comp '08
Spesh FSR XC Expert '080 -
fuzzynavel wrote:synchronicity wrote:Yes.
It's happened to me a number of times. I've usualky got 10+ road rental bikes waiting at the ready... many of them have 100psi in the tyres. I've had the odd one go... it was caused by inadequate coverage of rim tape on a shimano 105 wheelset (offset spoke bed).
One time, a rear innertube also exploded shortly after delivery of rental bike (this was the same bike).
If you fill the tires on a cold day then the internal pressure will rise on a warm day governed by the ideal gas law PV =nrt... Could possibly lead to popping if your rim is rough!
Oooh, I know what that means and I thought physics would never be of any use in life! 0
