I'm looking for a downloadable database of professional (road) riders, containing age, height, weight, etc. The only thing I've found so far is http://www.sports-reference.com/olympics/sports/CYC/mens-road-race-individual.html which seems to have a good amount of information, but is not easily downloadable, as I would have to go to each rider page individually go obtain the data. Any other sources out there?
It's unlikely that anyone who has compiled that data would allow you download it.
Cycling News has a really good database at http://www.cyclingnews.com/teams
You can download rankings that include all the riders with name, country and age at http://www.cqranking.com/men/asp/gen/downloads.asp
Other than that I would try the UCI or each country's governing body, but it's unlikely they would have height and weight stats.