I've had a Lezyne steel floor pump for a number of years and it's a workhorse. I've had many floor pumps over the years and was looking for something as durable and reliable as my old Silca which gave up after decrypting + use and abuse. Sure it's not a "quick change" cartridge, but every pump I've had with one of those cartridges wears out. An upgrade with an angled chuck versus the straight chuck that came with the pump is very nice to have. It is easier to put on, turns for a few seconds and the connection with the valve is tight. It also works seamlessly with Presta and Shraeder(sp?) valves. So far this cartridge and floor pump is exactly what I wanted. Outstanding technology and ergonomics.
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