Valve core and lezyne pump fail?
I haz had this.
Amongst other things
Though it turns out the brand new tube whose valve core unscrewed was also punctured straight out of the box! I only found this out when I got home and properly screwed the core back in.
It was a succession of utter fail.
@dancing james started
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Valve core and lezyne pump fail?
I haz had this.