You can burn 700-800 calories riding for 20 miles or about 1 1/2 hours.
I wouldn't walk that much (hours of walking) or run that much (a lot harder on the body), so to me it's really great exercise.
That's also why I find kazinator's post a bit exaggerated. That dude's burning through a lot of calories every week. You can eat a lot of ice cream (personal experience) and still lose weight if you're doing 14 miles every day.
Not denying that moving limbs is good for you! I also love cycling, which is a very important factor. I'm just saying that minute for minute, you spend more calories on inefficient modes of transport such as running or swimming or rowing or lifting heavy junk, so if your primary concern is maximising exercise in as little time as possible, that's the first place to look.
I wouldn't walk that much (hours of walking) or run that much (a lot harder on the body), so to me it's really great exercise.
That's also why I find kazinator's post a bit exaggerated. That dude's burning through a lot of calories every week. You can eat a lot of ice cream (personal experience) and still lose weight if you're doing 14 miles every day.