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Schwalbe Marathon Plus Failure
Matt wrote:
Cycling home the other evening I suddenly experienced a front tyre deflation. This is partcularly un nerving on the bent and even more so when you're in the feeder lane on to the A3! Still made it to the verge to rectify what I assumed was just a normal puncture caused by road debris. When I removed the tyre I found a long strand of thin metal wire had come lose inside the tyre and the end of this had punctured the tube. At first I thought that somehow this wire had worked its way into the tyre from the road - although a couple of seconds thought made me realise how ridiculous this was. What appears to have happened is the metal strengthening in the bead of the tyre had become uncovered. I am naive enough to not even realise cycle tyres had steel beads! That's true of all normal non-folding tyres, and that's why they don't collapse when you remove them from the wheel. Folding tyres have floppy kevlar beads. I've not used a lot of Schwalbe tyres but this seems a very unusual failure. Has anyone elese experienced this sort of thing with a Schwalbe or any other make? It's quite a common failure with various tyres for the sidewall to split (under-inflation is one cause of this), but I've not heard of a bead separating without the sidewall failing. You could try getting a refund if you bought the tyre not too long ago. ~PB |
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#2
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Schwalbe Marathon Plus Failure
Cycling home the other evening I suddenly experienced a front tyre
deflation. This is partcularly un nerving on the bent and even more so when you're in the feeder lane on to the A3! Still made it to the verge to rectify what I assumed was just a normal puncture caused by road debris. When I removed the tyre I found a long strand of thin metal wire had come lose inside the tyre and the end of this had punctured the tube. At first I thought that somehow this wire had worked its way into the tyre from the road - although a couple of seconds thought made me realise how ridiculous this was. What appears to have happened is the metal strengthening in the bead of the tyre had become uncovered. I am naive enough to not even realise cycle tyres had steel beads! I've not used a lot of Schwalbe tyres but this seems a very unusual failure. Has anyone elese experienced this sort of thing with a Schwalbe or any other make? It proved quite tricky to break the wire so as I could replace the tyre and minimise the risk of re puncture from a sharp wire stub. Unfortunately I didn't think to photograph the failure in all its glory. I'm guessing the tyre is useless now so have ordered another. Matt By the way no less than 4 cyclists passing by my stricken machine checked I was OK - one even offered me a spare tube. Restores your faith.... |
#3
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Schwalbe Marathon Plus Failure
Pete Biggs wrote:
Matt wrote: I've not used a lot of Schwalbe tyres but this seems a very unusual failure. Has anyone elese experienced this sort of thing with a Schwalbe or any other make? I have never seen this in any tyre I have owned. It's quite a common failure with various tyres for the sidewall to split (under-inflation is one cause of this), but I've not heard of a bead separating without the sidewall failing. You could try getting a refund if you bought the tyre not too long ago. If the tyre is in good condition (apart from this failure), then I would expect a refund, if not from the shop then send it make to the manufacturers Martin. |
#4
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Schwalbe Marathon Plus Failure
On Aug 22, 9:03 am, Phil W Lee phil(at)lee-family(dot)me(dot)uk
wrote: I've learned several things from the experience: 1) carry an old toothpaste tube in the repair kit, with the ends cut off to save space. I've mentioned it before, but a section of a tyvek envelope sounds more suitable than a toothpaste tube, and has saved a couple of rides for us (including 60 miles on a fully laden tandem). It is really tough stuff, but very easy to use. James |
#5
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Schwalbe Marathon Plus Failure
On 22 Aug, 02:19, "
wrote: On Aug 22, 9:03 am, Phil W Lee phil(at)lee-family(dot)me(dot)uk wrote: I've learned several things from the experience: 1) carry an old toothpaste tube in the repair kit, with the ends cut off to save space. I've mentioned it before, but a section of a tyvek envelope sounds more suitable than a toothpaste tube, and has saved a couple of rides for us (including 60 miles on a fully laden tandem). It is really tough stuff, but very easy to use. These sound like fine kludges. I thought I would mention that I have repaired a mountain bike tyre that had the bead seperate due to brake block abrasion, by stiching it with ordinary needle and thread obtained from a nearby hotel. As far as I am aware (not my bike) the tyre perfomed flawlessly for the rest of the day. Of course the pressure was lower than that typical in a road tyre so I would suppose that any tyre distorsion would be less. |
#6
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Schwalbe Marathon Plus Failure
Matt wrote:
Cycling home the other evening I suddenly experienced a front tyre deflation. This is partcularly un nerving on the bent and even more so when you're in the feeder lane on to the A3! Still made it to the verge to rectify what I assumed was just a normal puncture caused by road debris. When I removed the tyre I found a long strand of thin metal wire had come lose inside the tyre and the end of this had punctured the tube. At first I thought that somehow this wire had worked its way into the tyre from the road - although a couple of seconds thought made me realise how ridiculous this was. What appears to have happened is the metal strengthening in the bead of the tyre had become uncovered. I am naive enough to not even realise cycle tyres had steel beads! snip That's interesting, mate of mine had one go exactly the same way about 3 months ago. Would seem to me Schwalbe should tidy up their quality control. I hope this isn't symptomatic cos I love those tyres for commuting and mind will get replaced in the spring. Btw, if you have the receipt, I'd say its a deffo replacement job. |
#7
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Schwalbe Marathon Plus Failure
A friend of mine had NINE yes NINE punctures on a day while
cycletouring in Spain a few years ago. We were riding separately for the day. I diagnosed an exposed wire, just as you describe. I always carry bits of canvas and glued one over it. End of problem. Still have bits of canvas tape from old tubular tyres from 15+ years ago! |
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Schwalbe Marathon Plus Failure
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#9
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Schwalbe Marathon Plus Failure
Quoting Phil W Lee phil(at)lee-family(dot)me(dot)uk:
David Damerell considered 26 Aug Quoting : On Aug 22, 9:03 am, Phil W Lee phil(at)lee-family(dot)me(dot)uk 1) carry an old toothpaste tube in the repair kit, with the ends cut off to save space. I've mentioned it before, but a section of a tyvek envelope sounds more suitable than a toothpaste tube, A chunk of dead tyre with the beads cut off works fine, too. Just how would that hold the tyre to the bead wires? Oh, fair point. Thought it was the usual boot discussion. Of course I have duct tape on serious touring, but that does preclude using the relevant brake... -- David Damerell Kill the tomato! Today is First Friday, August. |
#10
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Schwalbe Marathon Plus Failure
On 27 Aug 2008 04:46:17 +0100 (BST)
David Damerell wrote: Quoting Phil W Lee phil(at)lee-family(dot)me(dot)uk: David Damerell considered 26 Aug Quoting : On Aug 22, 9:03 am, Phil W Lee phil(at)lee-family(dot)me(dot)uk 1) carry an old toothpaste tube in the repair kit, with the ends cut off to save space. I've mentioned it before, but a section of a tyvek envelope sounds more suitable than a toothpaste tube, A chunk of dead tyre with the beads cut off works fine, too. Just how would that hold the tyre to the bead wires? Oh, fair point. Thought it was the usual boot discussion. Of course I have duct tape on serious touring, but that does preclude using the relevant brake... No - you wrap it around the tyre, not the rim. |
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