In article ,
Duane wrote:

....

I see no value in trying to get a presto tube to work in a rim made
for a schraeder tube. Seems like just asking for trouble.

Works for me. I just use a Mavic Schrader to Presta Rim Valve
Converter in each rim. They're just simple plastic inserts that
reduce the diameter of the hole that takes the valve.
--
Dennis Davis