Originally Posted by HvPnyrs

Another enthusiastic endorsement. Although pump only twelve years old.
Purchased an hpX 4 with the then brand spanking new Epic Adventure Bike. It was the only pump I had for over two years. Near daily use pumping up to 120-125 psi (I Was much heavier then, and before the cush ride/fat tire on road bike movement, thin was still 'in'). Still have and use the same pump on the trek 520 to this day when on tour.

Purchased two more *spares* off e-bay a couple years ago when it looked like they were discontinued (not listed on Zefal website. no parts listed either). I noticed last year that parts are now available direct from Zefal, as well as the pump being back in the catalog.
This works really well with the hpX series as the body of the Top handle is also alloy and can be relectorized quite easily, in addition to the body of the pump.