Originally Posted by
Grim
What I do like about Presta is the threaded stem keeping you from having to hold it from pushing into the rim. Most of my bikes wear presta to Schrader adapters so that I don't ruin another valve. I don't even take them off and tighten the Presta on two of my bikes.
Agreed, that is a nice feature, but at least Continental has taken care of that with their Schräder tubes, which have the threading and nut like typical (not all) Presta tubes.