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Old 08-11-10, 11:19 PM   #1
cabcasey
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Hello

I recently purchase a bike ,but i been told by a person that i can not air pump them and that i have to get some adapter.

What does that even mean? Besides more $$$
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Old 08-12-10, 03:18 AM   #2
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Old 08-12-10, 04:03 AM   #3
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Cheers and welcome to Bike Forums.

Pics of your bike and valves in tyres would help. There are about 3 common valve designs ("common" also depends on where you live), odds are you have a wrong kind of pump for the valve in question.

BTW, I'm moving this to Bicycle Mechanics (from General).

--Juha, a Forum Mod
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Old 08-12-10, 05:44 AM   #4
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Most likely at least here in the US, you have tubes fitted with Presta valves (the top of the valve looks like a series of stacked parts, each smaller than the one below). Most automotive-type valves are Schrader (top of the valve is pretty much flat right across.).

You can either go get a bicycle air pump (most will handle either type of valve), or pick up a few cheap presta-to-schrader adapters. Most bike shops around here have them for around $1 each.

If you aren't in the US, I'm not sure what you may have. I know there is a 3rd type of valve, but it's rare here and I've never had direct experience with it.
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Old 08-12-10, 07:06 AM   #5
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agree with the above, yo uprobably have presta valves which means you can't just go to a gas station and fill up without having a valve adaptor. Another thing to note is that many aircompressors don't get up to high enough pressures to make them suitable for pumping bike tires or you can have a case where they fill up too fast like at a gas station that has very high pressure high volume compressors because they use air tools. A good old footpump is the best way and can be had for relatively short money. Most of the time you will just be topping off the air every few days.
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Old 08-12-10, 08:16 AM   #6
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If your bike has presta valves...
http://en.wikipedia.org/wiki/Presta_valve
... and you want to use a shrader pump, you can use an adapter like this...

http://www.icyclesusa.com/catalog/br...ve-adapter.htm

See also "How To Use a Presta Valve Adapter":
http://bicycletutor.com/presta-valve/
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Old 08-12-10, 08:25 AM   #7
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For comparison, Sheldon Brown has a pic of all three valves (Presta, Schrader and Dunlop) side by side.

http://sheldonbrown.com/tyres.html#valves

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Old 08-12-10, 08:31 AM   #8
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hello
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