I have a Joe Blow pump that works. I love the big dial, but hate the presta/schreader dual head. I am wanting to pick up the new Silica head and use it with the Joe Blow body/hose.
The Joe Blow doesn’t grip it well enough. This one does:
I love the pump, but the gauge is harder to read for precise applications. ~6-7 Bar is good enough for riding around, but I like the dial better on the Joe Blow. Just not the head.
Oh yes, I seem to remember that issue with the Topeak (joe blow) dual heads. If possible, you can always swap-out another head from a pump you may already own. I’ve had to do this on occasion…
(always trying to save $$$, use spare parts, etc.)