Different Types Of Bicycle Pumps And Pump Heads
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- เผยแพร่เมื่อ 22 ก.พ. 2021
- Check out different types of bicycle pumps and pump heads and see which type will work best for you.
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Glossary:
Knurled - Small ridges on the edge or surface. This makes a round-shaped nut easier to tighten and loosen.
Pneumatic - A pneumatic tyre operates by air under pressure.
Pump (portable) - This is a hand pump. It is easy to carry around, but takes a lot of effort to inflate a tyre with one of these.
Pump (track) - A track pump, sometimes called a stirrup pump or a floor pump, is a large pump that is operated by standing on a stirrup or plate and then using both hand to move the handle up and down. It is too heavy to carry around, but it is much easier to get high pressure and a lot of air volume into a tyre with one of these.
Puncture - When air is lost from the inner tube. This is caused by the following:
Penetration by a sharp object through the tyre, Glass, thorns.
Trapping the inner tube between the rim and the tyre. Pinch puncture or snakebite. So called because the puncture forms two little holes.
The valve rubbing against the valve hole because it too big for the valve and doesn't have a valve collar.
Because the tyre is worn, objects that would normally be deflected puncture the tube.
Not really a puncture, but the tube can go flat because the valve has failed.
Inflating the tube without checking the seating of the tyre, so the tube pushes past the tyre and rim and gets trapped and explodes.
Faulty rim tape causing the spoke ends or spoke holes to penetrate the tube.
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Thanks for sharing the knowledge Mary!
My pleasure Mark. More to come soon...
Mary I'm having a problem not covered in your video. You do not explain the lever enough. There used to be just one kind of lever. As you pushed head of the pump onto the valve you would ALSO push the lever. To take it off, you pulled the lever. Simple. Easy. Now they have invented some atrocity that requires you to simultaneously PUSH the pump while PULLING the lever, an operation that is:
1. Always confusing
2. Always requires a complex coordinated effort
3. NEVER something that works the first time, even if you know how to use one, if your tire is flat and there is no air to support the valve and hold it firmly in place while you try to simultaneously pull and push this infuriating modernization of something that WORKED PERFECTLY.
As the old style of lever has now been ALMOST COMPLETELY REPLACED by this apostasy to anyone who rode a bike in the 20th century, is is OF CRITICAL IMPORTANCE for me to know what THESE TWO DIFFERENT LEVER STYLES ARE CALLED.
If you or any of your viewers know what this GOOD KIND of lever is called, I stand a better chance of finding one that doesn't make me curse and shout and kick the bicycle pump down that road.
If you can't tell, I REALLY REALLY hate the new design for levers.
Thanks to this video, I at least know that the part in question is called the LEVER.
I tried asking the Google but Google is yet another thing that has declined in functionality as time progressed.
Hi, thanks for your comment and I really feel for you. This sounds really frustrating. We use pretty modern types of pumps here but I'm not sure what kind of new type of pump lever you're taking about.
I will do some reasearch and ask other fellow bike shop owners and will get back to you if I find out some information. In the meantime if you're really frustrated with your current pump then it might be a good idea to look for a different one that is simpler to use.
@@cyclemaintenanceacademy THANKS! been looking. I'll probably need to go to the Army surplus store or some place like that. Maybe an auto parts store still has the old levers.