Pump conversion?
06-20-07, 10:34 AM
#1
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Pump conversion?
OK, a little help for the stupid guy in the corner, if you please. I bought a frame pump, this one to be precise:
https://www.nashbar.com/profile.cfm?c...0Frame%20Pumps
and the description says it's convertible from Schrader to Presta. So I bring my bike up from the basement this morning, and notice the tires are a little soft. No worries, that's why I bought a pump, right?
Well, I can't for the life of me figure out how to make this effin' thing work on the Prestas on my bike.
Help? Anyone? Please?
https://www.nashbar.com/profile.cfm?c...0Frame%20Pumps
and the description says it's convertible from Schrader to Presta. So I bring my bike up from the basement this morning, and notice the tires are a little soft. No worries, that's why I bought a pump, right?
Well, I can't for the life of me figure out how to make this effin' thing work on the Prestas on my bike.
Help? Anyone? Please?
06-20-07, 10:53 AM
#2
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Unscrew the cap, remove the rubber piece and the plastic piece beneath it. Turn them both around and reinsert them, plastic first then the rubber piece. Screw the cap back on.
Edit, to clarify a bit. When the pump is set up for schrader, the plastic piece will have end with the tit on it pointing out, the rubber piece(shaped like a cup with a hole in the bottom) will have the larger opening pointing out. For presta you want the open end of the plastic piece pointing out and the small open end of the rubber piece pointing out. When the two pieces ar put together correctly they fit into each other.
If you have a hard time getting the pump on the presta valve loosen up the cap a little.
Edit, to clarify a bit. When the pump is set up for schrader, the plastic piece will have end with the tit on it pointing out, the rubber piece(shaped like a cup with a hole in the bottom) will have the larger opening pointing out. For presta you want the open end of the plastic piece pointing out and the small open end of the rubber piece pointing out. When the two pieces ar put together correctly they fit into each other.
If you have a hard time getting the pump on the presta valve loosen up the cap a little.
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06-20-07, 10:54 AM
#3
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Originally Posted by Rev.Chuck
Unscrew the cap, remove the rubber piece and the plastic piece beneath it. Turn them both around and reinsert them, plastic first then the rubber piece. Screw the cap back on.
groovy thanks!
06-20-07, 11:28 AM
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Frame pumps are really for road emergencies. You need a floor pump with a built-in gauge for daily use.
Al
Al
