I just bought an older Trek Mountain Bike, how do I pump up these tires?
But I noticed that the valve is not the typical one that Im used to seeing. It is much smaller and has some type of extra piece on it.
How can I pump these tires up?
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 GT Zaskar CARBON PRO MOUNTAIN BIKE MEDIUM frame size  US $410.00
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 New 08 Specialized Epic Expert Mountain Bike Frame L US $445.02
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 New 08 Fox F100 RL mountain bike shock shox 100mm US $234.50
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 TREK 6000 MOUNTAIN BIKE 18 GREY US $207.50
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 Cannondale F7 CO2 Frame 24 Speed Mountain Bike US $260.00
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 Trek 4300 mountain bike US $255.00
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Tagged with: tires
Filed under: trek mountain bikes
It is called a Presta valve. You can pick up an adapter at a bike shop for a dollar. You can also buy a bicycle pump that wil fit a Presta and the standard Shrader valve. I always carry an adapter with just in case my pump fails. Here is how you use a Presta valve with an adapter.
http://bicycletutor.com/presta-valve/
It is a Presta valve. Are you telling me you have never seen a presta valve? Good luck.
ken, way to beat up the guy for asking a question prick