Review on 🚴 LEZYNE ABS-1 Pro Chuck Bicycle Valve Head: Presta & Schrader Compatible High Performance for Your Bike by Sam Kriegshauser

The head that came with my pump connects quickly to presta valves but requires threads on shrader valves and those threads were a bit fiddly at times so I gave this one a try. All in all it was a disappointment and I went back to the original head. It's definitely easier to screw this head onto the Shrader valves and switching the head between Presta and Shrader is the easiest I've ever seen but the fact that I now have the pump on the Presta valves has also made the pump a little less convenient to use overall and not more. For those who only need to refill Shrader valves this is probably a great solution, but not much if you use both regularly. An additional problem with Presta valves with removable cores is that the pressure of the rubber seal in the pump head tends to unthread the valve core when the pump head is removed.