Originally Posted by
zacster
For this reason you do burn more calories the more you weigh, if you are riding a target distance at a target power on a trainer in something like Zwift. In the real world, wind and road resistance can kick in too and vary the results.
Yes, simply because it takes longer to complete the target distance. But if you are on a gym bike then you are most likely to be riding for a fixed length of time eg 1 hour, rather than a virtual distance. So your weight won't matter. Weight only matters when you start riding outdoors over a specific distance and elevation. Power and duration are what determine your energy burn in all cases. On a gym bike, virtual distance, speed and elevation don't matter.