Originally Posted by
FBinNY
Long is whatever it means to the individual involves. There are people who think about 5 miles the same way some think about 50 or a hundred or more. But in a general sense, I'd say anything that takes more than 2 hours is long for most non-cyclists. (unless they're fit or do other sports)
cycling at a modest pace takes no more energy expenditure than walking. while there are certainly people who cannot walk 2 hours i think most would agree that this is not some herculean task.