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how much effort to pump to 100psi?

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how much effort to pump to 100psi?

Old 05-01-12, 11:02 AM
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GordonFreeman
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how much effort to pump to 100psi?

Strange question but how much effort does it require to pump to 100 psi?
I use the bike pump on Kennington road but my arms are knackered after a min and can only get it to 80psi.
Maybe I should use a track pump at a shop.
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Old 05-01-12, 11:08 AM
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I usually have to do one or two pumps on each tire each day. Not much effort.

I have no idea where Kennington road is but if you are going to be a cyclist you are going to have to buy a pump.
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Old 05-01-12, 11:12 AM
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Originally Posted by GordonFreeman View Post
Strange question but how much effort does it require to pump to 100 psi?
I use the bike pump on Kennington road but my arms are knackered after a min and can only get it to 80psi.
Maybe I should use a track pump at a shop.
I think you need a floor pump. It shouldn't take a minute to pump up your tires and your arms won't be knackered.
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Old 05-01-12, 11:52 AM
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Electric air pump inflates up to 160 psi. All you need is a $3 presta adapter......
https://www.amazon.com/Black-Decker-ASI300-Station-Inflator/dp/B000IE0YIQ/ref=sr_1_3?ie=UTF8&qid=1335894698&sr=8-3
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Old 05-01-12, 11:56 AM
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Originally Posted by starving View Post
Electric air pump inflates up to 160 psi. All you need is a $3 presta adapter......
https://www.amazon.com/Black-Decker-ASI300-Station-Inflator/dp/B000IE0YIQ/ref=sr_1_3?ie=UTF8&qid=1335894698&sr=8-3
That's not very aero. Does it come with a frame mount?

I might get one of those just because my garage doesn't have one yet.
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Old 05-01-12, 11:59 AM
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Oh, if he needs inflation on the road, just buy CO2 cartridges.
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Old 05-01-12, 12:00 PM
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Originally Posted by GordonFreeman View Post
Strange question but how much effort does it require to pump to 100 psi?
I use the bike pump on Kennington road but my arms are knackered after a min and can only get it to 80psi.
Maybe I should use a track pump at a shop.
I don't think it's going to be any more or less difficult on Kennington Road than elsewhere.

It depends on the pump. They are rated to different pressures, and push different amounts of air per stroke. They have to be narrow, and the longer the barrel the fewer stokes you'll need. The Lezyne pump I carry is rated to 160psi, and getting a 23mm tyre to 100 or so is not that difficult, but it's a long way from effortless.

And obviously, the tyre matters. Big fat tyres are low pressure, but high volume - you have to push a lot of air into them. 23mm road tyres, the opposite.
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Old 05-01-12, 12:00 PM
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Basic floor pump should be easy. Hand-held frame pump, not so much.

Solution: get a floor pump. A worthy investment. Use the search to find "best floor pump," they all work ok.
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Old 05-01-12, 12:01 PM
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Originally Posted by GordonFreeman View Post
Strange question but how much effort does it require to pump to 100 psi?
I use the bike pump on Kennington road but my arms are knackered after a min and can only get it to 80psi.
Maybe I should use a track pump at a shop.
Unless you have physical issues, it's possible that the pump is bad. 100psi is not that much and while you will feel some resistance, you should be able to do it with any decent pump you'd mount on your bike and certainly anything that stands on the floor.
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Old 05-01-12, 12:02 PM
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And for mini pumps, keep in mind that the thinner the pump, the easier it will be to inflate, but it will take longer.
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Old 05-01-12, 12:03 PM
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Originally Posted by GordonFreeman View Post
Strange question but how much effort does it require to pump to 100 psi?
I use the bike pump on Kennington road but my arms are knackered after a min and can only get it to 80psi.
Maybe I should use a track pump at a shop.
Strange question indeed.

Where is this road? What sort of pump is it? Why is there a pump on the road??

Google provides some light.

https://www.london-se1.co.uk/news/view/5900

================

100 psi should not require too much effort with a large pump (like a floor pump).

I suspect your technique is off (or the pump is bad or your tire valves are not open or stuck).

You can use your body weight to bottom-out the plunger and go slow and steady (don't try to rush it).

If you have thin valves on your tires (presta), make sure you open them and tap the valve to let some air out.

Last edited by njkayaker; 05-01-12 at 12:09 PM.
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Old 05-01-12, 12:04 PM
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Depends on the pump, some of them have big fat barrels- good for mtb tires where you need a ton of air but relatively low pressure.

Some have skinny barrels and are good for high pressure but relatively low volume.
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Old 05-01-12, 12:05 PM
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Go to REI and pick up a lezyne steel floor drive, it will last forever and crank out PSI like nobody's business
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Old 05-01-12, 12:08 PM
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How much effort? Easy way to find out. Let the air out and pump them up!


Is Kennington road at the top of Pike's Peak, CO? Then its the thin atmosphere...
Other than that I'm stumped. Maybe you should work out more?
T-Rex hates pushups too.

Heck, I top off my car tires with my home floor pump when needed. No biggie.
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Old 05-01-12, 12:12 PM
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Originally Posted by njkayaker View Post
Strange question indeed.

Where is this road? What sort of pump is it? Why is there a pump on the road??

Google provides some light.


https://www.london-se1.co.uk/news/view/5900

================

100 psi should not require too much effort with a large pump (like a floor pump).

I suspect your technique is off (or the pump is bad or your tire valves are not open or stuck).

You can use your body weight to bottom-out the plunger and go slow and steady (don't try to rush it).

If you have thin valves on your tires (presta), make sure you open them and tap the valve to let some air out.
That is awesome! Public bicycle pump, who would have guessed? Google is the best.
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Old 05-01-12, 12:31 PM
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We have public bicycle pumps around here from time to time. There used to be one on 8th and Esther.

Now there's one out front of Bad Monkey Bikes on Broadway and Evergreen.
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Old 05-01-12, 12:33 PM
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Originally Posted by Jaymadd View Post
That is awesome! Public bicycle pump, who would have guessed? Google is the best.
Nice.

Here we have angry motorists in pickups and chipseal....google that.
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Old 05-01-12, 01:17 PM
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I got a cheap wally fart factory pump from the bike section and it's effortless.
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Old 05-01-12, 02:11 PM
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Have you considered working on your upper body strength?
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Old 05-01-12, 02:50 PM
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And I'm guessing the " Three Stags Pub" isn't a strip joint
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Old 05-01-12, 06:37 PM
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One of the petite woman in my bike club really struggles inflating her bike tire tubes.
I find it a total non-issue pumping to 120psi. Athenas rule!
We both have the same brand/model of floor pump.

I've not tried a mini-pump and hear they are a PITA.
I am very particular where my tires go and use CO2 cartridges if I get a flat mid-ride.
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Old 05-01-12, 06:42 PM
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Originally Posted by starving View Post
Electric air pump inflates up to 160 psi. All you need is a $3 presta adapter......
https://www.amazon.com/Black-Decker-ASI300-Station-Inflator/dp/B000IE0YIQ/ref=sr_1_3?ie=UTF8&qid=1335894698&sr=8-3
+1
I bought one a couple years ago.
It is also excellent for the car's tires.
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Old 05-01-12, 06:47 PM
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Originally Posted by VELOGLOCK View Post
And I'm guessing the " Three Stags Pub" isn't a strip joint
Bummer...
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Old 05-01-12, 06:59 PM
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Originally Posted by njkayaker View Post
Strange question indeed.

Where is this road? What sort of pump is it? Why is there a pump on the road??

Google provides some light.

https://www.london-se1.co.uk/news/view/5900
.
Well that explains it. The sheer size of the cylinder and the height of the plunger would make it quite hard to pump I'd think.
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Old 05-01-12, 07:12 PM
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I have a Lezyne micro floor drive HP mini bike pump on the tandem. It's not really micro, but pretty light weight. Relatively easy to use, about 100 pumps to useful pressure. Would not recommend for a small woman as it does take some weight behind your arm; the pure muscle approach would get tiring very quickly (youngsters excluded of course). It's a good enough pump that I abandoned use of CO2..
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