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I just think there should be a minimum weight for bike and rider.
not sure how the 125's work really. I presume someone like Radies in the old days used to have ballast a bit to get to the limit.
Say the bike weights 120kg, rider weighs 55 (Pedrosa) thats 175. DRedding weight 70kg, thats 190 kg
Power to weight ratio is this. CBR600 engine puts out say 125 hp
So it powers either 175 or 190 kg. do the math!
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