Nutrition on the road - What, How and Why?

Just looked here:
http://www.hammernutrition.com/products/perpetuem.pp.html

It contains electrolytes but no fructose.

^ this. Although 90g is too much for me. It depends on your body weight (amongst other things) as to how much carbs you can deal with, 90g is the highest I've figure I've heard. I'm sure hippy needs a hoisin crispy duck every 15mins.

Bananas take some beating, try them. Fructose and not too much fibre plus potassium, cheap and in biodegradable packaging too :-)

I've read about ironman record holder training to use 120g CHO per hour I think it was. But that's at the very fast end of the field.

Bananas aren't that good. They don't provide enough carbs and you'll shit yourself before you adequately fuel yourself. :P