Good question, I wish I had specific answers for you.
Here is my logic, Get a heavy bike with and upright seating position and ride it a lot. Being a heavy bike makes you work harder, having a less aero position increases wind resistance thus make one work harder than say the same person would work on a nice light road bike with drops. When I first started trying to lose weight I used a electra beach cruiser with one speed. The bike was comfortable, heavy, and as aerodynamic as a twice used brick. I just rode and rode that thing and ate good foods and managed to lose 50 lbs pretty quickly. I learned to embrace the wind and hills instead of riding on mostly flat ground. The simple fact is, that is if I am remembering my physiology correctly, so long as you have a caloric deficiency every day you will lose weight so long as you don't drop caloric intake to much. So say you should eat 2000 k/cal per day to maintain weight if you drop it to 1800-1700 k/cal your body won't think it is starving and you will drop fat not muscle.
God knows I am not a physiologist so take it for what it is worth.