http://www.bikeforums.net/showthread...ighlight=squat
This is a post I submitted regarding leg workouts that I think may help you out.
The one rep max test will be a good way to establish a starting point. The program in the post is a mix between power and mass building rep range.
I also suggest that you chart a weekly progression rate so you can see your results as they come about. There is no doubt that the weights will increase your power on the bike. Mix low rep work with high rep work to get overall best results. I typically do one heavy workout every third leg day. Light days I will do 10 to 20 repitition sets and never lower than 8 rep sets on a light day.