Fox mentioned...
You have added muscle, by your own admission. Muscle weighs more than fat, which you likely have lost if you have stayed about the same weight.
and this is correct. As you make muscle in your legs, your weight will not drop but eventually it will start to drop if you eat properly. I would suggest adding a couple of apples a day to your current diet. Try eating one at 10am and another at 12:30pm, it is better to eat more smaller meals than 3 large meals and try something new, don't eat everything on your plate, leave some, this shows you have self control and prevents you from overeating. I would also suggest you diversify, instead of cycling only, try walking 2 to 5 miles daily and riding 20 miles. I think many people discount walking importance. Walking is something you can do at work on a lunch break, you should be able to walk 1 mile in 15-20 minutes. I am not an expert and therefore take my suggestions as such but they have worked for me.