Ask a Mechanic Best Valve Extender

Published on October 3rd, 2014 | by Daniel

Ask a Mechanic: Don’t Get Caught With the Wrong Valve Extenders

Question: I have a set of HED Jet 6 rims and I’m having a really hard time getting my valve extenders to not leak air. Is there some kind of trick that I’m missing? From: Ryan

Answer: Half the battle with valve extenders can be won by picking the right tube and extender. I always opt for valve extenders that are made to work with tubes utilizing a removable valve core. This type of extender seals well and is easier to inflate and deflate than extenders that are made to fit over the top of an open valve.

I like to add a little Teflon tape to the threads on the extender before installing it in the tube’s valve stem. The tape helps to ensure an airtight seal.

Although I don’t like the other style of valve extenders very much, they do have one big advantage; they will work with any tube whether it has a removable core or not. So I like to carry a couple with me just in case I run out of spare tubes and need to bum a tube off of a buddy that may not carry tubes with removable cores.

Welcome to our Ask a Mechanic column where our expert mechanics Daniel Slusser and Greg O’Keeffe answer your bike maintenance questions. If you have a question for us, please post it on the Art’s Cyclery Facebook Wall or e-mail Daniel directly at daniel.slusser@artscyclery.com. To see more great how to videos click on the highlighted link to subscribe to our YouTube channel and stay up to date on each episode of the Art’s Cyclery/VeloNews Ask a Mechanic Series.

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About the Author

Daniel

Slusser is a professional bicycle mechanic with over ten years of experience. He holds a bachelor’s degree in business administration from HSU and a master’s degree in history from Cal Poly. When he is not riding, wrenching, or writing he enjoys spending time with his wife and two children.



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