Looking at the label on a Clif bar, it has 240 calories, 45g of carbs, 160mg sodium, and 230mg potassium. The main ingredient is brown rice syrup. It would be better if the sweetener was raw honey, but it shouldn't matter during a ride.
Shouldn't that take care of the carbs and electrolytes both?
Yes, that is a lot of sodium and potassium. One Endurolyte, in contrast, has 40mg sodium and 25mg potassium, as well as other minerals and Vitamin B6. I don't notice one/hr., but I do notice two. For more information on electrolytes, read:
http://www.hammernutrition.com/knowl...ight.1274.html
Don't read this as product hyping, merely as information. 3/4 teaspoon of salt/day is about right, add a little more when exercising.
Brown rice syrup is actually pretty cool. Look it up in the wiki. Honey contains a mixture of fructose and glucose, both monosaccarides. Table suger, sucrose, is the same two sugars but combined into a disaccaride. Brown rice syrup is much more complicated.