Premium vs. Regular Grade – Fueling Well to Train Well, Part 1

In a past article, Bob Hayssen outlined the relationship between kilojoules (KJ’s) and calories. He pointed out that although, mathematically, one calorie is equal to 4.2 KJ’s, the human body is only 25% efficient at best. This relationship works out rather nicely for cyclists, especially since power meters have become common, because it means that 1 KJ burned on the bike is roughly equal to 1 calorie that needs to be obtained through the diet. Knowing this, here are some tips to help you make those KJ’s work for you most effectively. Read More

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