08-13-2004, 09:22 AM
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#252 (permalink)
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| | Re: Presta Valves-WHY?
fx199@aol.com wrote:
>> My Trek 7700 hybrid that I picked up tonight also has Presta valves.
>> This bike rides a lot smoother than my 1200, but the 1200 seems
>> to be a little faster on city streets. The 7700 will be used a lot on
>> multi-use trails where I never take the 1200.
>
> Yep, that's what bike I have...a 7700 FX..I like it a lot, and love the
> clipless pedals which I never has before. Are these rims too narrow to
> enlarge the hole?
Eek!
At least try out the Presta valves for a while, and see if you really
dislike them so much. All reasonable-quality bicycle pumps can handle
Presta valves. (Of course, part of my definition of "reasonable quality"
in this case would probably include "can handle Presta valves"  ).
Here's a good example of a cheap, good quality floor pump that can handle
both types of valves:
http://tinyurl.com/4ttxa
I don't think I've ever seen a road pump that couldn't handle Presta. Many
of them (e.g. the Zefal line) have a little rubber washer and plastic
doohicky, and you reverse the orientation of these to adapt to either type
of valve.
I've found it to be easier to release the pump from the valve without
letting out any air from the tube, since unlike with the Schrader valve,
the Presta valve is closes when you're not actively pushing air into the
tube. (I'm talking about the hand pumps for Schrader valves that have a
little pin to hold the valve open. If they didn't have this, it would be
harder to inflate, since you'd be working against a spring.)
--
Benjamin Lewis
I regret to say that we of the FBI are powerless to act in cases of
oral-genital intimacy, unless it has in some way obstructed interstate
commerce. -- J. Edgar Hoover
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