Broken Valve Stems

[aicabsolut]

It's really common for that to happen with mini pumps because you wiggle the thing back and forth to get good leverage. The Road Morph pump or something similar will help with that (there's a platform for your foot) or anything with a separate hose, but those are a bit bigger to lug around.

Change those tubes! Don't ride on broken valves!

[tulip]

Thanks for the info. I do have a road morph, but it's on my other bike; guess I'll start moving it from bike to bike. I'll change those tubes, assuming I can deflate them. They are on my Bike Friday, which has specialty size tubes. I have two more, but I'll need to order some more right away so I don't get stuck tubeless.

[aicabsolut]

Thanks for the info. I do have a road morph, but it's on my other bike; guess I'll start moving it from bike to bike. I'll change those tubes, assuming I can deflate them. They are on my Bike Friday, which has specialty size tubes. I have two more, but I'll need to order some more right away so I don't get stuck tubeless.

If you can find anything to stick up in there to depress the remaining bit of stem, you will be able to get it deflated enough to change the tire.

[emily_in_nc]

The only time this ever happened to me was when I had lost the little nut that goes around the Presta valve against the rim. So, when I was pumping the tire, the valve got pressed into the tube and split a leak right at the tube, which of course I didn't realize until the next day when I got my bike out of the car to ride, and am embarrassed to say that I didn't have a spare tire on me. (This is an easy fire road/doubletrack trail and I've never once gotten a flat on my mtb so had gotten a bit lazy). So, no ride for me that day. Lesson learned!