Interesting situation! Do we need this....

Mountain bikes have heavy wheels, or can, and you are paying a double penalty for rolling weight. It is not much of an issue on a road bike. The extra 15lbs I am carrying on my ass and elsewhere is where I need weight reduction, not my bicycles :-)

@jetter

I have about 6 pairs of Cambridge Soundwork speakers plus the Fleetwood set. They sound incredible, when setup properly. Kloss was a genius. 

@thespeakerdude

Indeed, that 15lbs of fat off your ass is much more important than 15lbs off the bike. That’s been my experience. I used to go on a fast training ride every Thursday here in town. I had a 27lb Raleigh Technium and I’d get dropped on one of the hills every time. One day I came out with my new weapon - a 17 lb Bianchi with all Dura-Ace. I was eager to hit that hill and when we got there I got dropped. It was as if nothing had changed. Skip ahead 8 weeks of fairly serious training and that hill was no longer a problem - even on the Technium. I think gaining power is even more important than getting fat off your ass. But if you do it right you'll both lose weight and gain power. I've tried dieting by counting calories and witnessed myself get lighter and slower. The trick for me is to ride often and pretty hard and watch what I kinds of things I eat, not how much. I gotta eat as many calories as my body asks me for or I get weak. For me the right foods seems to be very low fat, high carb, but not refined sugars or wheat. The refined sugars and wheat may not make me fat but they make my old teeth hurt, as does diet soda for some reason. 

I have been doing low carb since before it was fashionable and learning to eat to match my activities, carb loading when I was going to need it. I found that strength training was the best change for weight loss. More muscle mass, more calories burned. I am about 22lbs, but some of that is a carrier and a folding panier. You never know when a good bakery or winery will pop up on your rides. You have to have your priorities straight.

@thespeakerdude 

You have to have your priorities straight.

You do.

Even, if like me, after years of resistance, you're eventually forced into a reduced sugar/ carb diet. You don't have to give up sugar/ carbs, just reduce them and burn off the rest.

Apparently there's already over a billion people walking around in the insulin resistant phase.
 

An awful lot of future suffering could be avoided if more people followed your example.

more calories burned  

That's the heart of it I think.

We all slow down metabolically, but we don't have to stop altogether. 

Music also has healing qualities and a good system can certainly improve mood.