a blend of wit and charm
Join Date: Mar 2005
Bikes: Serotta Fierte and a 1989 Centurian Prestige (plus, various others)
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I would not recommend using them "just using the lock nut" without making the hole smaller first. There's too much room for the valve to move around. Wheels Manufacturing makes some little bushings called Presta Savers that are the best option. You can also find rubber inserts that do the same thing but they are not as good as the Wheels Manufacturing product.
Bike Nashbar carries them, but a lot of bike shops have them too. You might have to file the edges of the lip part down a little bit, depending on how narrow the inside of your rims are.
Last edited by Moochers_Dad; 06-10-06 at 09:56 AM.