I try to go to the gym a couple of times a week, but have recently changed my workout as the use of weights was increasng my weight. I now do purely cardio type activities ie. cycling, treadmill etc as primarily I want to lose weight, being a fairly chunky ex front row rugby player. When I cycle for real I find that I can cover longer distances in a quicker time than if I cover the same distance on the gym 'bikes'. Is this purely down to factors such as boredom when static cycling or is there a real difference in the activities even though the actions are broadly similar. I tend to use a distance or hilly program in the gym where as any ride local will have some undulations. Is this a common experience or is it just me!