Pooks, you can do a lot of analysis and what-ifs, but the reality is once you get the road bike you will ride it more often, go longer and longer distances, and start setting yourself roadie goals, like doing your first metric century. The result of all of that is you burn more calories, because on the comfort bike you couldn't bike hundreds of miles each month.

The equation is simple, more miles rode equals more calories burned.

And you will ride more miles because that is what roadies do.

There will be more exertion used on the road bike versus the comfort bike because you will be setting yourself goals. Roadies are like the explorers of past centuries in that they constantly extend their horizons as in what is over the next hill, or what happens if I go that way, or can I get somewhere before the sun goes down. It is a different mind set, one that is beneficial to burning body fat.

The goals get modified to accommodate increasing the speed, improving the cadence, going up steeper hills, then going up longer steeper hills. By then you say a metric century, what is so difficult about a metric century?

Can you do all of that on a heavy comfort bike? The answer is no.

Darcy