I had two tire pumps that required new heads. Not being able to tell the quality from the picture I bought three to keep the top two. However, to my pleasant surprise, one of the three heads (SKS) works the way I prefer (by pushing the lever down to lock the head onto the valve stem), but I've been told that the pumps don't come with those heads will. more. So I bought a second SKS and returned this head and another. Their quality turned out to be the same, but the need to depress the head and then lift the lever up to fix it on the valve stem is counterintuitive. Squeezing the head as you squeeze the lever is more intuitive and just helps ensure the head is fully seated on the stem once locked. Also, some small-diameter wheels, such as such as those on lawn tractors, do not have enough clearance to move the lever to the fully vertical position. With the other head, however, you can use the lever to put it halfway down and then push it all the way down to lock it in place.
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