[ctviggen]

And this Sheldon Brown web site listed below has a lot of articles  about gearing, sizing and bike parts.  It is a great resource to learn about bikes-

http://sheldonbrown.com/bicycleGears.html

I used to read his posts and site all the time. He got killed riding his bike on the road.

[Doublej]

I used to read his posts and site all the time. He got killed riding his bike on the road.

Not according to this article.

http://www.wired.com/2008/02/sheldon-brown-w/