Originally Posted by
HillRider
A quick search on Amazon showed they do carry Presta valve bike tubes at a variety of prices, including very reasonable. I wouldn't compromise my rim to save a few cents on my tubes.
Especially if it's an aluminum rim. Aluminum and its alloys does not handle stress very well, and any small imperfections in the edges of a home-drilled hole will become stress risers.
All to save what? $1? At most?