Light bike, fat bastard, heavy bike, slim(er) bastard?

heavier bikes, in my case my tourer, just makes me ride slower, but the effort i apply is the same. so i can't see why it would make you thinner.

that got me thinking of one thing - wind resistance, the faster you go the more wind resistence (obviously) and because of the wind resistance, you'd need to able to keep up your cadence as much as possible.

going slowly on a heavy bike will probably make you sweat a lots but I doubt it would get you as fit as you can on a fixed/singlespeed bicycle.

Or I could be talking bollocks.