View Single Post
Old 09-19-25 | 06:16 AM
  #9  
Tourist in MSN
Senior Member
15 Anniversary
Community Builder
Active Streak: 30 Days
 
Joined: Aug 2010
Posts: 12,717
Likes: 2,104
From: Madison, WI

Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.

Originally Posted by noglider
My threaded hose kept pulling the valve core out after I was finished inflating, assuring that the tire ended up totally empty. I was livid. This is with presta valves. ... ....
First time that happened to me was on a bike tour about a decade and a half ago, with a 50mm wide tire which of course takes a lot of air when I pump it up the second time, with a small portable pump.

Since then, I always use a wrench to tighten the valve core. Have not had a problem with that since. And I usually use the Lezyne pump for bike touring which uses that chuck.

Several years ago I saw a great sale on Schwalbe tubes, bought a bunch of them and they all had removeable cores. On that batch I added just a tiny bit of blue (removable) thread locker to the valve cores before I tightened them with a wrench. If you try this make sure that no threadlocker gets onto the valve seat.

Last year I saw some valve caps that had a small hole in the cap that fit over the wrench flats on a Presta Valve. Bought several of those caps to put one on each of my bikes. Thus, the cap also functioned as a wrench to tighten the valve core.

Tourist in MSN is offline  
Reply