Im using the valve extender that comes with my zipp 404s. At first, the air keep leaking when I use the pump.. So I put teflon tape and made the seal good, and now I can pump the tube ONLY when I start with very low PSI (like 20 psi).
So for example, If I pump a tube, I have to first let most the air out, and then I can start pumping to any desired PSI .. Then I remove the pump head... Lets say the next day, I want to pump the tube back to 115 psi.. I have to take the air back down to 20PSI in order to pump. If I dont do that, the air just wont go in..
Anyone have this same problem? Any fixes or am I doing something wrong.
I gave up using valve extenders on my 404's, I don't care how good it looks, it just isn't worth the hassle. Buy 80mm valve tires, trust me the extra $$ for the longer valves is worth it!!
Now, I have to use valve extenders on my 808, but I only use it when I'm racing.
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