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Performance brand tube failures
Anyone been having trouble with Performance Brand tubes failing at the
valve stem? My buddy has had at least 4 of them recently that have failed right at the base of the stem. We checked the hole in the rim for sharp edges, but didn't find any problem. |
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Performance brand tube failures
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Performance brand tube failures
wrote in message
oups.com... Anyone been having trouble with Performance Brand tubes failing at the valve stem? My buddy has had at least 4 of them recently that have failed right at the base of the stem. We checked the hole in the rim for sharp edges, but didn't find any problem. One other possibility. I had a pair of Hutchinson tires a couple of years ago that caused tube failures adjacent to the stem. The tire's bead area was so large that the tube by the valve was suspended between the two beads and could not seat against the bottom of the rim. Over time the tube would fail at the unsupported area that was next to the valve. I have also had runs of defective tubes from Salsa and Continental where the tubes would fail at a weak seam in the tube. Solution was to give up on light weight road tubes and go to Blackburn generic standard weight. A little heavier, but they never fail with out outside intervention. Bill |
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Performance brand tube failures
Bill wrote: wrote in message oups.com... Anyone been having trouble with Performance Brand tubes failing at the valve stem? My buddy has had at least 4 of them recently that have failed right at the base of the stem. We checked the hole in the rim for sharp edges, but didn't find any problem. One other possibility. I had a pair of Hutchinson tires a couple of years ago that caused tube failures adjacent to the stem. The tire's bead area was so large that the tube by the valve was suspended between the two beads and could not seat against the bottom of the rim. Over time the tube would fail at the unsupported area that was next to the valve. I ride the Huthcinson tires ( not with Performance tubes) and have no problem with valve stem failures |
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Performance brand tube failures
On Fri, 24 Jun 2005 11:27:28 -0400, "Bill" wrote:
One other possibility. I had a pair of Hutchinson tires a couple of years ago that caused tube failures adjacent to the stem. The tire's bead area was so large that the tube by the valve was suspended between the two beads and could not seat against the bottom of the rim. Over time the tube would fail at the unsupported area that was next to the valve. Uhm.. what do you mean, bead area was so large? And what was special about the valve area? Tires usually expand a little less at the valve area than elsewhere, so it sounds to me like you were simply having a problem with inappropriately sized tubes. Jasper |
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Performance brand tube failures
Jasper Janssen writes:
One other possibility. I had a pair of Hutchinson tires a couple of years ago that caused tube failures adjacent to the stem. The tire's bead area was so large that the tube by the valve was suspended between the two beads and could not seat against the bottom of the rim. Over time the tube would fail at the unsupported area that was next to the valve. Uhm... what do you mean, bead area was so large? And what was special about the valve area? Tires usually expand a little less at the valve area than elsewhere, so it sounds to me like you were simply having a problem with inappropriately sized tubes. Not having a clear description of the failure mode, determining its cause is difficult. If this is about stem separation from the tube, where the stem can be subsequently separated from the tube manually, then it is a manufacturing flaw. We've been through this about a year or so ago when this was a widespread failure. At the time the faithful placed blame on the valve stem nut that was said to have pulled the stem from the tube. That this is not the case can easily be shown by screwing the valve stem (knurled) nut on as tight as is manually possible before inflation and noting that the nut is free and loose from internal pressure, a force far larger than the nut can exert when tightened with thumb and forefinger. The nut has its purpose but only for folks who pump their tires with a frame fit pump with rigid valve chuck. I suppose CO2 cartridges are the norm these days from what I read here. These are not aided by valve stem nuts nor are extended valve stems for riders of the aero persuasion. Jobst Brandt |
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Performance brand tube failures
Yep,
I purchased some Lunar Lights and the tire failed in that manner. Switched over to Michelins and have not had a problem since. Don't know if it was a design flaw or a manufcture problem. Claude |
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Performance brand tube failures
file the hole from the inside. work on it. its an acquired skill.
often, the barbs cannot be seen. |
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Performance brand tube failures
file the hole from the inside. work on it. its an acquired skill.
often, the barbs cannot be seen. |
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Performance brand tube failures
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