It happens more than I like. I've found it happens most with a small take-with-you pump. Good quality floor pumps are best. I also am sure to buy tubes with brass valves. They seem stronger than the steel-alu-whatever metal valves. Pump carefully.
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Thread: Presta valve issue
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06-26-2011, 07:45 AM #1
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06-26-2011, 09:57 AM #2
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Yeah, it's happened to me twice lately and irritated the hell out of me! I thought it had something to do with how I put the pump on/took it off. I consulted my engineer spouse, who advised me to hold the tire above the valve with one hand so I could have more leverage in guiding the pump on and off straight. I think that will help.
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06-26-2011, 10:36 AM #3
Shih-Tzu Happens
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I have been putting off getting a good floor pump. I will get one ASAP now. The tube was what came with the bike but, luckily I had a coupon for a free tube at my LBS and got to look at their selection of floor pumps while I was there so, tomorrow I will stop in after work and get one.
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06-26-2011, 11:11 AM #4
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This has actually never happened to me ... but I always use a floor pump except for the rare occasion when I'm out of CO2 cartridges and have to use my backup mini-pump. And when using the floor pump, I always make sure the valve is at 12:00 before attaching the pump head. Keeping the pump head on straight helps the flow of air, but I can see it would reduce the chance of breaking the valve stem, too.
Other thoughts - make sure the collar nut is loose or just don't use it; make sure the valve stem nut is fully unscrewed before pumping and don't overtighten it afterward.Speed comes from what you put behind you. - Judi Ketteler
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06-26-2011, 04:23 PM #5
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This happened to me twice last summer, although I wouldn't say that it broke off so much as SHOT off. Never found it either time. Using a Park floor pump both times. I chalked it up to the quality of the tube. I believe they were both Q-Tubes, so I avoid those now.
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06-27-2011, 02:45 AM #6
Shih-Tzu Happens
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That's kind of what I was thinking. Poor quality tubes. This is the first time it happened to me with any of my three bikes.
Originally Posted by Skierchickie
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06-27-2011, 05:43 AM #7
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This has happened to me before, too. I chalked it up to being in a hurry and not attaching the pump properly.
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