The button helps, I used that lezyne end on 2 or 3 bikes a day for about 10 months, probably unscrewed 3 or 4 valve cores. Now we have a lezyne quick release style end, no problem with presta but it's bloody tight on schrader.
lezyne quick release style end
What pump brand / model has that? do want!
@snottyotter started
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The button helps, I used that lezyne end on 2 or 3 bikes a day for about 10 months, probably unscrewed 3 or 4 valve cores. Now we have a lezyne quick release style end, no problem with presta but it's bloody tight on schrader.