Originally Posted by
andr0id
How much did she weigh? 20 miles a day at commuting speed isn't going to burn 1/4 of those calories.
About 125, mostly muscle, but she also wasn't a typical commuter; she carried full panniers to and from the school, swapped them out when she got home for the ones with her work clothes, and rode the whole commute like it was resistance training. On days she worked both jobs, that would be 8 miles to school, 8 back home to snack and change panniers, 10 miles to one job, 6 to the other, and around 9 home. 41 miles before switching to the unloaded road bike for another 1-2 hours of riding.