Setting up my bike tubeless and had one wheel set up completely fine. My other wheel has slightly more rim depth which means that the tubeless valve I have just about comes out the other end so that I can put the o ring and the metal fastener on. I'm then using a valve extender to get the valve to the correct length. When I fill up my wheel with air, I can feel air coming out of the drain hole on the rim and not going into the tyre. Any advice would be helpful. I've rim tape for both of them myself. Adding a picture for reference.
by Inside-Year-9988
5 Comments
It might be the extenders fault, but it can also be a bad tape job. You won’t find out without either buying a long enough valve without retaping your wheel, or retape your wheel without changing your valve 🤷🏼♂️
Your valve extender may be leaking. Maybe put in the correct length valve and discard the extender?
Since that valve stem is going to live in that wheel a long time, I’d definitely get a correctly sized and high quality one. It could be your rim tape, but my money is on the valve extender. Even if it is your tape, that valve extender is a potential failure point. It would really suck to have it blow out on a long ride.
Wait, you said air is coming out the drain hole and not the valve, correct? That would suggest a problem with the taping. Since you’re going to redo the tape, then get a longer valve as others have suggested.
Did you put teflon tape on the threads of the extender before threading it onto the valve stem? If not, I’ll bet that’s where the leak is.
Extenders aren’t used as much these days so this necessary step isn’t common knowledge anymore.