100psi = BANG?
I signed up here ages ago and only just uncovered the site again, oopsies!
Yesterday I decided to take myself out on a spin, usually around 10 miles of local country and the like. It was raining but I prefer the rain, there's less cars and no morons on the streets. Anyhoo the noise we all dread came into my ears, 'hsssssssssssss', crapsticks... I slow and moan to myself when I realise I have everything I need to repair it bar the sodding pump, which was still in my other rucksack. Chunnering I start the walk home, the rain had slowed to a trickle so it wasn't a bad walk back, just I would have prefered riding it.
I get home and set about repairing it; I was expecting a snakebite because Bolton council seem to have forgotten how to repair the major roads, but are perfectly happy to spend millions on statues and new council housing. Anyway, it wasn't a snakebite but rather a large thorn. I repair it anyway, as you do just in case you need one, and fit a brand new tube and one of the new tyres I'd bought a few weeks previous. Now I personally always run on 100psi, it's hard enough and has a little bit of squish to aid my grip; so there I am pumping away, hit the 100psi and stop. I turn around to check what the cat is doing and I hear this creaking sound...
BANG!
Inner tube explodes, firing half the tyre off the rim and sending fishy air everywhere, scaring the censored out of me, the cat and several small families in India. I chuckle to myself because it was mildly amusing but it got me wondering; was I wrong about the PSI all along?
I have always run on 100psi, never had a problem; should I return the tube or was it just my error? The box didn't indicate what the best PSI was and the way the tube blew I think it may have been defective, split right a long the seem.
Ideas?
Ta!
Yesterday I decided to take myself out on a spin, usually around 10 miles of local country and the like. It was raining but I prefer the rain, there's less cars and no morons on the streets. Anyhoo the noise we all dread came into my ears, 'hsssssssssssss', crapsticks... I slow and moan to myself when I realise I have everything I need to repair it bar the sodding pump, which was still in my other rucksack. Chunnering I start the walk home, the rain had slowed to a trickle so it wasn't a bad walk back, just I would have prefered riding it.
I get home and set about repairing it; I was expecting a snakebite because Bolton council seem to have forgotten how to repair the major roads, but are perfectly happy to spend millions on statues and new council housing. Anyway, it wasn't a snakebite but rather a large thorn. I repair it anyway, as you do just in case you need one, and fit a brand new tube and one of the new tyres I'd bought a few weeks previous. Now I personally always run on 100psi, it's hard enough and has a little bit of squish to aid my grip; so there I am pumping away, hit the 100psi and stop. I turn around to check what the cat is doing and I hear this creaking sound...
BANG!
Inner tube explodes, firing half the tyre off the rim and sending fishy air everywhere, scaring the censored out of me, the cat and several small families in India. I chuckle to myself because it was mildly amusing but it got me wondering; was I wrong about the PSI all along?
I have always run on 100psi, never had a problem; should I return the tube or was it just my error? The box didn't indicate what the best PSI was and the way the tube blew I think it may have been defective, split right a long the seem.
Ideas?
Ta!
http://www.youtube.com/user/Eurobunneh - My Youtube channel.
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the tube is just there as an airtight liner for the tyre and doesn't have a pressure rating
the tyre 'supports' the tube enabling it to hold the required pressure, the tube alone could never hold anything close to 100psi
as monty dog says, it sounds like you pinched the tube - or perhaps didn't seat the tyre on the rim so the tube can balloon in the gap
Could also have been an improperly seated tire bead.
Certainly sounds like what you suggest and I must admit I had forgotten about that sort of thing. I fitted a new tube earlier and checked around the rim this time, no problems. Went on a lovely ride over the hills; so thanks ever so much for the info!
/hugs