Bike Forums - View Single Post - Presta Valve Adaptor and Air Compressor problem

08-03-10 | 02:07 PM

#8

gholt

Senior Member

Joined: Sep 2006

Posts: 686

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From: Layton, UT

Bikes: 2004 Giant OCR, 2002 Specialized Stumpjumper, 2008 Trek 6500 Disc

Quote:

Originally Posted by fietsbob

FWIW if the airpressure is higher than the spring that closes the schrader core + the air in the tire is higher than the pump provides the valve will open , ,But Presta is not spring loaded so loosening the lock nut on the stem and tapping it to break the stickyness on the seat will get you pumpimng ,

The one You show via Amazon, is kind of like the Silca accessory Head,
the other one is un needed if you have a Schrader Pump. thumb lock Schrader pump head is better than one that screws on to the stem.

So, the schrader is brand new. So, tapping it may make the pressure release. I have also set the compressor hose to 120 psi, should i lower it to about 30 or 40 and then raise it up once I can get the spring to release?

Last edited by gholt; 08-03-10 at 02:27 PM.

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