Zefal Bicycle HPX 3 Road Frame Pump Logo
Posted on Aug 12, 2010
Answered by a Fixya Expert

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I have a Zefal HP frame pump. I'm trying to inflate a tire with a Presta valve. It just won't inflate. It doesn't latch onto the valve and seems to big for the valve body. Is there a diagram available to see if a part is missing or broken?

1 Answer

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  • Master 8,546 Answers
  • Posted on Aug 12, 2010
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Joined: Apr 02, 2009
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Let's hope you didn't force it and snap the plastic point off.

Most Zefal pumps come with a reversible head that can adapt to either Presta or Schreader (like on cars). You unscrew the barrel at the working end of the valve, carefully tap out the rubber cylinder and the plastic internal piece behind it.

Insert the plastic piece in either of two ways. Pointy part Out (for Schrader) or just a round opening Out (for Presta). Rotate the rubber piece correspondingly to show the large opening for Schrader or the smaller opening for Presta and place it inside the valve over the plastic piece. Screw the knurled barrel on tightly.

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Related Questions:

0helpful
2answers

Im trying to figure out how to inflate the trek 4900 tire, its not your normal valve stem and i havent found anyone that know please help me?
Where did you look? Search for "inflate bicycle tire" or "inflate presta valve".

Search engines work for most common questions - immediately.
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Aug 04, 2011 • Trek 4900
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I am buying a bike pump. My Tires Kenda Comfort w/ puncture resistant K-shield 26x1.95 on The Classic Serene 2010. Do they have standard valves or presta valves. Can you recommend a floor pump for me.
Tires don't have valves. TUBES do. Can't you tell by LOOKING at them?

http://en.wikipedia.org/wiki/Schrader_valve#Presta_valves_vs._Schrader_valves

Either way, you should buy a pump that serves both types. Stick with name brand - Blackburn, Park Tool, Topeak. Get on the web and read some reviews.
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Jul 08, 2011 • Diamondback Serene Classic Women's Sport...
3helpful
1answer

How do you inflate this tube with the presta valve?
The following link is a good explanation of inflating a presta valved tube if you have a pump with a presta valve head.

If you have an older pump that does not have a presta valve head, you can purchase a schrader valve adapter from your local bike shop that screws onto the presta valve and will allow you to utilize a pump with a schrader head.
A good explanation can be found here: http://bicycletutor.com/presta-valve/
Read full answer
Feb 18, 2011 • Cycling
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I have a schwinn bicycle pump and i need to know how to use the bike tire part and not the needle part
The needle part for blowing up basketballs and the like simply unscrews from the bike tire part. Depending on the type of tire you have, you might have to get an adapter. If it looks like your car tire stem, it's called a Schraeder valve, and you should be all set. If it is thinner and has a tip that you unscrew, it is called a Presta valve, and you may or may not need an adapter depending on your pump.

Hope this helps.
Read full answer
Jan 21, 2011 • Zefal Bicycle Duo 821 XLT Frame Pumps
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The pressure gauge on my Topeak Joe Blow Ace floor pump is not working. The pump works fine. How do i take the pump apart and what should I be trying to do to repair?
http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html

  1. Rotate the wheel so the valve is resting just above the floor. Remove the valve cap.

  2. Unscrew the locking nut on the valve stem. Quickly press down the stem to loosen the seal. You should hear air escaping when the stem is pushed in--if you do not, loosen the nut and try again.
  3. Press the pump head onto the valve and flip the locking lever to make a seal. You'll hear air escape, but it should stop after you've locked the lever. If air continues to leak out, remove the pump head and reattach it.
  4. Make two pump strokes and listen for air moving into the tire. If the pump handle becomes hard to press down after only a few strokes, or if the pressure gauge elevates extremely quickly, remove the pump head and repeat Step 3.
  5. Inflate the tire to its recommended pressure. Remove the head by unlocking its lever and quickly pulling it off the valve stem. Secure the valve's locking nut and cap.
Presta Compressor Toolwww.prestaflator.comInflate Road or Mountain Bike Tires Accurately in Seconds!


Read more: How to Inflate a Bicycle Tire With a Presta Valve ' eHow.com http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html#ixzz1Brv5VfAX
Read full answer
Jan 09, 2011 • Topeak Joe Blow Ace Floor Pump
1helpful
1answer

HOW DO I PUT AIR IN A MOUNTAIN BIKE TIRE WITH A PRESTA VALVE WITH A TOPEAK MINI MASTERBLASTER PUMP.
http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html

  1. Rotate the wheel so the valve is resting just above the floor. Remove the valve cap.

  2. Unscrew the locking nut on the valve stem. Quickly press down the stem to loosen the seal. You should hear air escaping when the stem is pushed in--if you do not, loosen the nut and try again.
  3. Press the pump head onto the valve and flip the locking lever to make a seal. You'll hear air escape, but it should stop after you've locked the lever. If air continues to leak out, remove the pump head and reattach it.
  4. Make two pump strokes and listen for air moving into the tire. If the pump handle becomes hard to press down after only a few strokes, or if the pressure gauge elevates extremely quickly, remove the pump head and repeat Step 3.
  5. Inflate the tire to its recommended pressure. Remove the head by unlocking its lever and quickly pulling it off the valve stem. Secure the valve's locking nut and cap.
Read more: How to Inflate a Bicycle Tire With a Presta Valve ' eHow.com http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html#ixzz1Brv5VfAX
Read full answer
Nov 02, 2010 • Topeak Mini Master Blaster
1helpful
1answer

I can't get my Zefal pump to seal onto my Pestal tires. The pump head constantly pops off. Do I need to return the pump?
If it is a dedicated presta pump, there should be a threaded cap on the head where it attaches to the valve stem - it has a hole through it to allow the stem through. Tighten that stem slightly and it should compress the rubber enough to hold on. But don't tighten too much or it will be hard to get off.

The head holds on with a rubber donut under that cap. By tightening the cap, the donut gets compressed and closes the hole tighter.
Read full answer
Oct 17, 2010 • Zefal Cycling
0helpful
1answer

I have just purchased a Topeak Mountain Morph pump, which can be used with both Presta/Scrader valves. I have a presta valve on my bike, but am not able to inflate my bike. Not sure if I am doing...
http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html

  1. Rotate the wheel so the valve is resting just above the floor. Remove the valve cap.

  2. Unscrew the locking nut on the valve stem. Quickly press down the stem to loosen the seal. You should hear air escaping when the stem is pushed in--if you do not, loosen the nut and try again.
  3. Press the pump head onto the valve and flip the locking lever to make a seal. You'll hear air escape, but it should stop after you've locked the lever. If air continues to leak out, remove the pump head and reattach it.
  4. Make two pump strokes and listen for air moving into the tire. If the pump handle becomes hard to press down after only a few strokes, or if the pressure gauge elevates extremely quickly, remove the pump head and repeat Step 3.
  5. Inflate the tire to its recommended pressure. Remove the head by unlocking its lever and quickly pulling it off the valve stem. Secure the valve's locking nut and cap.
Read more: How to Inflate a Bicycle Tire With a Presta Valve ' eHow.com http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html#ixzz1Brv5VfAX
Read full answer
Aug 25, 2010 • Topeak Morph Pump
0helpful
1answer

Topeak joe blow pumps front but not rear tire
What's different?

http://www.youtube.com/watch?v=Ehf6HL0aLTc

http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html

  1. Rotate the wheel so the valve is resting just above the floor. Remove the valve cap.

  2. Unscrew the locking nut on the valve stem. Quickly press down the stem to loosen the seal. You should hear air escaping when the stem is pushed in--if you do not, loosen the nut and try again.
  3. Press the pump head onto the valve and flip the locking lever to make a seal. You'll hear air escape, but it should stop after you've locked the lever. If air continues to leak out, remove the pump head and reattach it.
  4. Make two pump strokes and listen for air moving into the tire. If the pump handle becomes hard to press down after only a few strokes, or if the pressure gauge elevates extremely quickly, remove the pump head and repeat Step 3.
  5. Inflate the tire to its recommended pressure. Remove the head by unlocking its lever and quickly pulling it off the valve stem. Secure the valve's locking nut and cap.
Read more: How to Inflate a Bicycle Tire With a Presta Valve ' eHow.com http://www.ehow.com/how_4779541_inflate-bicycle-tire-presta-valve.html#ixzz1Brv5VfAX
Read full answer
Aug 21, 2010 • Topeak Joe Blow Ace Floor Pump
1helpful
1answer

How do I change to presta
If your pump is not double sided (which the one in the picture looks like) the rubber valve can be reversed very easily by unscrewing the outer cap where you usually insert the valve and turning the little rubber valve around before screwing the outer cap back on.
Read full answer
Jun 10, 2010 • Zefal Bicycle Air Profil Road Frame Pump
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Im trying to figure out how to inflate the trek 4900 tire, its not your normal valve stem and i havent found anyone that know please help me?

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