I have studies diet diaries for guys 'who are doing everything right but just can't lose weight'. Weight loss or gain can be looked at plus or minus 200 calories per day. Often, that 200 calories can easily be seen as 'healthy' snacks, taken after meals or between meals - e.g. a bananna, a 'diet' yogurt, an apple, etc - it all adds up, so it's worth keeping a detailed diary for a while to monitor yourself.
Another piece of advice I give, which people find useful, is to aim to cut all portions by around 10% - even the treats. The 'loss' is hardly noticible from any meal or snack but is, of course, a very big reducation overall.
And, yes, get used to the sensation of hunger!
Fasted rides of over 2 hours of easy riding are not generally recommended unless you are specifially adapted to it - you can go into a 'catabolic' state after that, burning muscle in part.