Has some pumping howl/whistle sound. Not sure how to categorize it. I don't love that part when trying to pump tire while everyone is asleep. It's a solid feeling pump and I love the huge gauge. Pumps fairly quickly too. I replaced the 'head' with the pro presto head by Lezyne because threading the head onto the presta valve every time was getting old. Highly recommend the upgrade if you're only pumping up presta.
Had another lezyne (Gravel sport with the tubeless chuck) that came loose at the base where it threads in. Otherwise like Lezyne pumps. This one is very solid and no issues. Also like the presta (which I use most) and schrader head since I do have one bike that requires that. Fills the tires with air, no frills, no problems. Even used the old tubeless to help a friend mount some tires w/o the compressor. The solid steel shaft was stable and it did the job.
