It's actually quite simple:

1) Track your daily calorie intake (use Lose It or similar app) and be Honest. Set your goal at around 2,000 NET Calories per day to lose about 1/2 lbs per week (as example for for average size / middle age male)

2) Vary your calorie intake day to day with some highs/other lows still making sure to hit the weekly total (to avoid getting body into starvation mode)

3) Add on serious milage on the bike each week including varied terrain rides and varied intensity. Bonus...now you can eat more and still hit #2 on a net calorie basis.

This is it, really. No more, no less..but for many, easier said than done. Works a charm for me and i can easily maintain my weight following it.