Question about GMC Denali Mens Road Bike 21 speed 25-inch frame 63cm

Open Question

How can I fit a Zefal Bigfoot air pump over my Huffy Mountain tires?

Posted by on

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


The tyre pressure should be printed on the tyre ,this usually is in small print,hope this helps

May 06, 2015 | Huffy Cycling

1 Answer

How do you use it?

there is a little switch looking thing that has to be lifted up from the pump then insert the valve into the bike pump and then puch the switch/lever back down and start pumping then to take off lift lever and quickly take pump off valve otherwise you will lose air you just put into tire

Mar 13, 2013 | Zefal Bicycle Duo 821 XLT Frame Pumps

1 Answer

The back tire rubs against the frame only when I pedal. The tire wobbles a little bit while coasting, but appears to pull over to the frame while pedaling. Huffy Stonemountain 2 - 18 speed bicycle.

Either the wheel is mounted wrong, moving at the axle or the wheel is not straight true and strong (spoke tension issues). Look at it. Try to wiggle the wheel with your hand.

Use search engines for "how to" questions.

Jul 14, 2011 | Huffy Men Mountain Bike (26")

1 Answer

Do you have step by step instructions on how to use floor pump air 2?

Place the end of the air hose nozzle from the pump on the tire valve.
Flip the lever on the side of the air nozzle straight up to lock the nozzle to the tire valve.
Hold the cylinder in one hand. Grab the end of the pump by its handle.
If the handle flips up, flip it up and turn it sideways and let the handle slip into your palm.
The stem of the handle should be extended between your middle finger and your ring finger.
Pull the handle straight out.
You will hear a slight hiss as the air is pulled into the bottom cylinder
and air is expelled out down the hose at the same time.
Push down on the handle to expel the air into the hose from the bottom of the cylinder.
Continue pushing and pulling up on the handle as you hold the pump in your hands until the tire is firm to the touch.
Remove the air nozzle from the tire valve.
Place a tire-pressure gauge on the valve to check the pressure.
Continue pumping and checking the tire to inflate it to the recommended pressure that is marked on the side of the tire.

May 14, 2011 | Zefal Cycling

1 Answer

I can't get my pump to pump air in my daughters tire. This is my first time using a pump where I have to set the pressure. What do I set the pressure to in order for it to pump the air in the tire?

You don't have to "set the pressure", that knob is just for your own reference.

Most problems of this sort are due to not getting a good seal with the tire nozzle. Here are some steps to help you along.

1. put the bike on a flat surface
2. spin the wheel so the nozzle is facing upward
3. put the pump end on the nozzle with the lever down (this is a common mistake as older pumps had to start with the lever up)
4. Push the end down on the nozzle and pull the lever up
5. If you hear air escaping, then hold the pump end on the nozzle for the first few pumps.
6. pump it up till its a bit hard but be careful you can pop it.

check out the video for a but more info and good luck!

Mar 17, 2011 | Zefal Bicycle Air 1 Floor Pump

1 Answer

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.

Oct 17, 2010 | Zefal Cycling

1 Answer

How do I pump a presta valve with the Blackburn Mountain Air Bike Pump 4 Bicycle

They should be designed to fit both styles of valve, but you need to reverse the seal.
you should be able to unscrew the end, remove the sealing rubber and a plastic fitting that pushes on the valve, replace them the opposite way around ,and they will fit the presta.

Aug 22, 2010 | Blackburn Mountain Air Mountain Bike Pump...

1 Answer

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...

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.

Aug 12, 2010 | Zefal Bicycle HPX 3 Road Frame Pump

Not finding what you are looking for?
GMC Denali Mens Road Bike 21 speed 25-inch frame 63cm Logo

Related Topics:

37 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Cycling Experts


Level 3 Expert

4336 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Donald Ayers-Marsh

Level 3 Expert

1036 Answers

Are you a GMC Cycling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides