Originally Posted by
wphamilton
A drop of loctite on the valve core threads, then twist down tight.
Best hack!
The Lezyne Carbon Drive mini-pump has a "tool" on the end of the hose that you can use to tighten up the valve core out on the road and before you attach the chuck to inflate the tube.
https://ride.lezyne.com/collections/...mp-cbrdr-v3m05