Originally Posted by livedarklions

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Right. The point is that the rider isn't just payload, he's the motor. It isn't just a matter of weight and resistance, it's also the ratio of power to weight that will determine speed. If you do like Mikey did and make the ratio of bike weight to rider weight radically different, it's pretty much impossible to believe that the ratio of power to weight is equal. He actually obscured the gross vehicle weight question by changing it to a puny rider pushing an absurdly heavy bike.