If torque determines a motorcycles accelaration, why does it pull harder at higher revs (bike with flat torque curve)

Question

i started riding a CB500F, it has a flat torque curve, pretty much the same torque at 3k and 9k rpm, then why does the bike (in the same gear) accelate much faster at higher than lower revs?

In: 88

Answer 1

Horsepower is torque divided by time. Make the time smaller, leave torque the same, and horsepower goes up. This is what happens when the engine turns faster, up to a point where other things factor in.