Davide Neri Posted June 18, 2018 Share Posted June 18, 2018 (edited) Hello everyone, i'm posting here for some help. I recorded this video https://youtu.be/nsN1dSj25hU where you can hear a "knocking" sound coming from my 14D. It is not the valve stem because i moved and tweaked it in every possible position, even removed the cap. Does anyone have any experience with this kind of issue? Thanks Edited June 18, 2018 by Davide Neri Quote Link to comment Share on other sites More sharing options...
mrelwood Posted June 18, 2018 Share Posted June 18, 2018 Unfortunately not, but it seems to come once every tire rotation. There's nothing else in the motor/hub/tire than the valve that qualifies, so perhaps there is something inside the tire well that touches the valve after all. Could be just a stick though. I might try to put a thin rag under the valve and slowly rotate the tire around. It might bring something with it. Although it might also grab into something and require a complete disassembly to get it out, so use your own consideration. Quote Link to comment Share on other sites More sharing options...
Guest Posted September 24, 2019 Share Posted September 24, 2019 I'm having a similar noise every rotation or so on my new 18L. Has anyone had this and figured it out? Quote Link to comment Share on other sites More sharing options...
Guest Posted September 24, 2019 Share Posted September 24, 2019 Nvm. I found out that I left my valve extender on while riding. smh Quote Link to comment Share on other sites More sharing options...
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