According to health experts, cycling not only raises your heart rate but also has the capacity to burn significant amounts of calories. Doing this exercise on a daily basis will help you burn more calories, which means you'll be able to lose fat stored in your body fat, including your abdominal fat. But it's not really that simple. Here' are a few good articles (See links).
https://www.bicycling.com/training/a...t-lose-weight/
https://www.cyclist.co.uk/tutorials/...ose-1kg-of-fat
https://www.cyclingweekly.com/fitnes...cycling-163887
I always put a bit of weight on over the Winter, normaly about 6-7 lbs and normally around my waist. This winter just gone was a lot less as I used the indoor turbo trainer. Three sessions a week lasting one hour at medium to high intensity (Zone 3 and 4 Heart rate based) I cut back on my sugar intake and cut out a lot of processed foods. Come March I start to ride outdoors...I ride between 70-100 miles per week, 7-9 hours per week, at an intensity level of Zone 2 - Zone 4. I ride until October if the weather is on my side Then back indoors on the turbo trainer. So let's say I'm 140 lbs one week after Christmas by the first week of May I'm 130 lbs. I don't work really hard to get the weight off I just lose it. Then again I've never been a big guy. As for dieting...never bothered with it, still eat pretty much any thing that comes my way...in moderation, but I don't count calories. Ain't got time for that
It works for me. But as mentioned above we all lose weight differently and at different rates...Bit of a guessing game giving it a time scale.