Originally Posted by jrennie
i have read the post on compact cranks, thats what peaked my interest, I was just wondering why you couldn't simply bolt a 50 tooth and a 34 to existing cranks for the same effect and why no companys made any.
http://www.bikeforums.net/showthread.php?t=123238
3rd paragraph sets out size, not busting your balls or anything here
You could put a 50 on and a 38 w/o too much trouble but other than that...it just is not practical (i.e finding it/ordering it/and the price for it) with the standard cranks of today. A compact could go both ways, however. All of this is in that thread or in a link there. enjoy.