Hi Michael, yes, there is a "top out" spring inside of the pump - it absorbs the shock at the long end of the back stroke. Zefal pumps have been making that sound for 60 years.
On Thursday, February 6, 2014 11:41:20 PM UTC-6, Michael wrote: > > > Question: When I hold the pump and turn it upside down, then right side > up, I hear a metal thing sliding inside along the tube. Is this supposed to > be that way, or is it broken? Sounds like a loose spring sliding and then > "duh-duh-duh-duh-duh" to a stop. Seems to pump fine and work great. > Thanks for your experienced answer. > > Arrived today, and it goes on the valve and off the valve and easier to > pump than any pump I've pumped. Comes off the valve with 0 loss of air. Not > a sound. Very cool. > Just barely fits my 52 Sam frame - but fits (at full retraction makes it > by about 1mm to clear the pump peg and then snap into place). > I think it took about 110 pumps to get to 50psi on my Marathon 44-584 > tires, which is nice. > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
