We managed 60psi in 100 strokes before we began to find the handle too problematic under the forces required to keep pumping.
Well engineered connector
Flimsy plunger and handle
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The PMP4's connector embodies all that we’ve come to expect from Park Tool — it feels like quality with a well engineered locking lever and is totally leak-free when it meets the valve.
At the other end, however, we were surprised to find that it was let down by the flimsy plunger and flip-out handle.
The latter in particular wanted to flip back inwards during use and graunch our knuckles on the top of the barrel.
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