I don't go on the exercise bike much as I prefer real cycling. But when I do I want to get it over with asap while at the same time getting a good workout. So I set it up at a nice round, matching number: 10km in 10 mins. I'm absolutely exhausted for about 5 minutes after I finish with the legs feeling like jelly but I'm ok in about 10 minutes. I would describe myself as at an average fitness level.
My aim is to improve my general road cycling ability. Is it better to do longer and less intensive workouts or is the above method better?