Help! I’m new to biking….?

I’m a runner and I want to bike for cross training. What are some good workouts I can do, and what will they do for me? I would like to improve my strength and anaerobic capacity before endurance. I don’t need to transition into biking, as I’m already in fantastic shape. (Unless there’s something I don’t know) Thanks.
You should probably know this stuff- I’m a male, 17 years old, Caucasian, and though very thin in great cardiovascular shape. I’m 6′2” and a 127 pounds.
Yes, but I’m still in very good shape- so I don’t need to ‘work my way up’ and start like a beginning athlete. And, yes, I’m aware of Lance Armstrong’s marathon- he said it was harder than the Tour was at any point for him ever.

Welcome to the world of cycling. So you say you’re in fantastic shape. Yet you also say you’re a runner. The reason why Armstrong found it so hard to run the marathon is because his body has developed to specialize in cycling. All his musculature, muscle memory and probably even his bones are suited to cycling. I’ll bet he’s feeling every mile of the marathon now.

It’s the same thing with you. You’re a runner. A superb one, I’ll bet, but you’ll still need some time for your body to adjust to the different demands of cycling. So take it easy for the first few rides. Learn the proper riding position & pedaling techniques first. Pushing too hard & too early in a new sport is a great way of getting injured.

Also, you will use a lot more equipment compared to running. You should learn how to take care of your bicycle – proper cleaning & maintenance, set-up procedures, etc.

Happy biking!

Treadmill Workouts : Treadmill Training for Marathon Runners