Review: Digital mini pumps are a rarity - it’s possibly your only choice, but a good one cycling Lezyne
is a compact and accurate pump for dialling your pressure. Unfortunately the head design risks removing your valve core, and getting past 80psi requires Herculean effort – so best suited for gravel or mountain bikes.
If you want to hang it off your bike there's a bottle-cage mount with a Velcro-and-metal-buckle strap that holds the pump solid.The flexible hose to connect to your valve has a Presta head at one end and Schrader at the other. The Presta end features a button that can be used to remove pressure from the hose before unwinding from a valve after inflation – though I didn't really notice much difference removing the head, pressurised or not.
The Lezyne's head is threaded, unlike the Snap-It Apogee used by competitor Birzman which pulls straight off, so there's zero risk of unthreading a Presta valve core – a very real possibility with the Lezyne. To reduce the risk Lezyne has machined core-size notches into the sides of the Presta end of the hose, so you can tighten up your valve core before threading the hose on.