GP sounds like she has a good answer.....definitely the fit of the cloths...but maybe NOT?????

When I was in college, I lived at home with my parents until I got married. I worked about 45 minute bike ride from home.....& I got this wonderful new 10 speed bike....something I had wanted all my life....& it was little & fit me......so I decided to be healthy & ride it to work & back on all the good weather days....which in southern Calif were almost every day. Funny thing...after quite awhile, my leg muscles got in such good shape....only problem, it made the legs of my pants tight......even though the waste was getting smaller.....so it depends on what area of the cloths one wants to measure.

I remember also....muscle weighs more than fat......once you start really getting into condition. Initially as the fat goes down & the muscle is building....then the weight will be declining....until the fat is then gone & the muscles are building & gaining more weight.....just a thought.

I think it's wonderful riding your bike to work....I have the best memories from all those days of riding my bike to work.....& I felt so very healthy (in spite of the smog in that San Fernando Valley area).

Wish you lots of good days with your rides.