I've been riding for a little over a year now, and have been thinking more and more about racing. My big thing is that the only muscle mass that I've put on is from saddle time, so I haven't gained a whole lot of muscle. I also haven't really been to the gym for serious lifting since I was in high school, but I still remember what the proper way to lift is in terms of how to build up your weight and how to lift with proper form so as to not hurt myself.
So the question here is what specific lifts have you used to build leg muscle for explosive/extensive power?
Any help here is appreciated, and thanks in advance.