Didn't you know that bicycle is the most efficient invention of man? T ...

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Didn't you know that bicycle is the most efficient invention of man? The food you eat, instead of stacking up your body as fat becomes fuel itself. Just 27 km of cycling burns 750 calories, that's equivalent to like your 3 meals in a day. How great can that be?


Didn't you know that bicycle is the most efficient invention of man... | Ecency