Review on LEZYNE HV Bicycle Hand Pump: High Volume 90 PSI, Presta & Schrader Compatible, Compact Bike Pump for Efficient Inflation by Javarie Brumfield

Well made pump. Small but big so thought it would be perfect for my gravel bike. Had a puncture during the race and tried to take advantage of it. The pump head screws onto the valve stem (so make sure the valve stems are threaded!). Unfortunately it got stuck on my valve and didn't come loose. I had to rip it off, which completely cut off my valve stem and effectively ended my race. I wouldn't recommend a threaded pump head, at least not for those emergency mini pumps.