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VALVE STEM SCREW(11 posts)

VALVE STEM SCREWfredstaple
Jan 15, 2004 4:59 AM
Do those little screws that hold the value stem tight to the rim hurt the rim at all? Are they necessary? Do you use them? thanks tom
WOOPS, I MEANT NUTfredstaple
Jan 15, 2004 5:00 AM
Woops I meant valve stem nut
I don't use them...my Michelin stems don't even have threads nmdivve
Jan 15, 2004 5:24 AM
Nobimini
Jan 15, 2004 5:37 AM
On my aero wheels there is no room for the nut. Could damage the rim. Messes with the looks and possibly aerodynamics. On my OPs I use to use them but quit. The only purpose I can see they serve is to hold the valve stem in place while you are putting the pump nozzle on when there is no air in the tube. Once there is a little pressure in the tire the stem is not going to go anywhere.
re: VALVE STEM SCREWSpoiler
Jan 15, 2004 5:40 AM
They can be useful when you're using a frame pump to fix a flat on the road. They hold the valve firm and tight against the rim's valve hole when the tube has no air to hold it in place. They don't hurt the rim.
You could just keep on in the saddle bag for just that use, then take it off when riding.
Agreedjtolleson
Jan 15, 2004 10:39 AM
I keep 'em on for that exact reason ... stabilizes the valve nicely when needing to pump by hand ... which I always hope is rare.

And I've never been persuaded, at least for rec riding, that weight or aerodynamics is an issue.
NO WAY!!witcomb
Jan 15, 2004 6:17 AM

There isn't a chance that I would use them. Do you know how much they weigh? Does anyone know of a source for Ti nuts?


I do use them, they do make pumping the tube up much easier.
must you YELL? (nm)Frith
Jan 15, 2004 7:16 AM
with some rim/valve combos they are handyColnagoFE
Jan 15, 2004 9:11 AM
I use standard length valves with my CXP33s and if I don't have at least one presta nut to hols the valve up, it's a real pain to put a pump on the valve.
re: VALVE STEM SCREWajgibbons
Jan 15, 2004 9:24 AM
"Style Man" (Bicycling Mag) once told us not to use them - for style reasons. Hopefully no one did anything with that advice, except perhaps groan.
re: VALVE STEM SCREWCrankist
Jan 15, 2004 11:09 AM
I must have missed that article. I'm putting mine back on...and the stem's not threaded.