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Presta vs Schrader valve(4 posts)

Presta vs Schrader valvewily in pacifica
Oct 8, 2003 11:25 AM
If you have a rim that is drilled for Schrader Valves can you still use the Presta tubes ?

Thanks, Willy in Pacifica
SortaSpoke Wrench
Oct 8, 2003 11:37 AM
They'll work in a pinch. The issue is that the tube will try to extrude through the larger valve hole and may cut itself. There are gromments made to fill up the space, but they're hard to find and even harder to install. Personally, I prefer Schrader tubes because they are much easier and faster to inflate with my air compressor.
yup...Steve_0
Oct 9, 2003 3:27 AM
schraeder comes in handy when you're near a service-station, also.

I've even drilled presta rims to make them schraeder in the past.
Problem Solvers makes an aluminum insert....RyanC
Oct 8, 2003 2:17 PM
The insert basically down-sizes the hole to presta width. Most shops
i should
have them (atleast the one I worked for did), so it shouldn't be terribly hard to find.
For a road bike, I prefer presta valves. Easier to use and inflate IMO and having schraders on a road bike for the sake of being able to fill them up with an air compressor is pointless, because most compressors can only hit 80-90 PSI.
-Ryan