I think I've forgotten how to fuel properly.

[Skippyak]

I think that mostly the weight loss comes from the kitchen and the exercise is a bonus, don't eat your caloric deficit from exercise, because that is the point of exercise, and as it as been said, endurance exercise is hard to use for calorie deficit because you need to eat to fuel real endurance, consider high intensity exercise more often, consider dropping endurance rides to occasional only, I also don't especially buy into under eating stalling weight loss, people who under eat are underweight, track every actual calorie eaten because THAT is an eye opener, every bite, every drink, everything, I am your height, I have been 200 pounds and to lose weight I have to cut calories to 1200 to lose weight without daily exercise of at least 500 calories burned (estimate, polar f60 or garmin 500/910). I always do a minimum of @3500 calories burned of exercise every week, in summer I am more likely to use @5000, I do not lose weight over summer. In summer, I eat to ride (swim/run) in winter I exercise to eat, I still have 15 pounds as I am at about 137 and have a lot of body fat still left. Eating to ride is a very tricky math problem. Lots of rec riders carry weight. Because we think we can eat like TDF riders LOL.

[Crankin]

I agree. If you are worried that you are not losing weight when fueling for riding, then you are not fueling enough for riding. It is a tricky balance. When I first started riding, I had to lose a small amount of weight. It came off in about 9 months (yes, it takes me that long to lose 15-20 lbs.) without doing anything but riding, going to step classes 2x a week, and eating my regular diet, which at that time probably was healthy, but a little carb heavy. I find my weight loss comes from small tweaks to my eating and adding in other types of exercise.
All I know is that when I am doing longer rides (+30 miles), I get very hungry and I know now exactly when and what I need to ingest, so my riding doesn't go to crap. I don't wait until I feel crappy, like I can't finish a hilly 40 mile ride to eat the Shot Blocks anymore...