16-03-2014, 09:17pm
In the days of the Triumph Bonneville (the original that is) it was reckoned that 45 hp (probably around 39 kilo-watts) was required to achieve the 'ton' a.k.a 100 mph or 160 kph. However, around the same time, diminutive dings on tiny 125 or even 50cc bikes were achieving the same sort of speed on a lot less horse power. I guess that was aerodynamics......
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