Originally Posted by
Whizzer283
I am seriously dissatisfied with my Lezyne Hi Pressure floor pump. The speed chuck pops off and the thread chuck pulls the barrel out of the valve stem. Pls share your recommendations.
I have one too and agree with your assessment.
I bought this replacement chuck:
https://www.amazon.com/gp/product/B002SJZ27M
And it's a lot better. I still hold it on while I pump, but it has been a huge improvement.