There are a few different options in the Lezyne stable—alloy, CNC-machined aluminum, steel, and classic. Each one is built to last, and Lezyne makes replacement hoses, chucks, and gauges should something unlikely happen.
But reliability isn’t the only pro for Lezyne, as The Sweethome also noted. The Classic pump I tested once again proved how effective the ABS chuck really is. Unlike other pumps where you flip a lever to inflate, the ABS chuck threads onto the valves and doesn’t leak. While it’s a flawless system, it’s a little slower, so Lezyne includes a speed chuck that allows you to flip it straight on without screwing the on the tip.