Fat burning takes about 30 minutes or so to kick in when you are exercising, and you need to be exercising at fairly moderate levels. Working any harder just burns off stored glycogen, which will be just as easily replaced. If you are a beginner, you'll need to build up slowly until you can go out for an hour or more at a time, when you can seriously start burning fat.
It's a slow process and you may even put on a little weight as you get into cycling and you build your cycling muscles, so be prepared to be patient and stick with it. Try to get out for a minimum three times a week.
As for the bike, I'd recommend a mtb-based hybrid. That would be robust enough to take off road as long as the terrain is not too rough, but give you a reasonable ride on the road. It's a myth that having a bike that makes you work harder on the road will burn fat off more quickly. It will just push you out of the fat-burning effort level and, in the longer run, may even discourage you from cycling all together.
Cycling should be fun, so getting out and enjoying the ride without working too hard is the way to make a difference.
It's a slow process and you may even put on a little weight as you get into cycling and you build your cycling muscles, so be prepared to be patient and stick with it. Try to get out for a minimum three times a week.
As for the bike, I'd recommend a mtb-based hybrid. That would be robust enough to take off road as long as the terrain is not too rough, but give you a reasonable ride on the road. It's a myth that having a bike that makes you work harder on the road will burn fat off more quickly. It will just push you out of the fat-burning effort level and, in the longer run, may even discourage you from cycling all together.
Cycling should be fun, so getting out and enjoying the ride without working too hard is the way to make a difference.