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
Take this to the extreme. Imagine two engines that provide 1HP of power One has high torque and spins the flywheel (without resistance) at 1 RPM and one with low torque and 10,000 RPM.
The first engine won’t result in quick acceleration but no reasonable amount of resistance will impede the rotation of the flywheel. The second engine’s flywheel will spin so fast it will be a blur to your eyes but reasonable reasonable resistance can stop the flywheel from spinning fast.
For a fixed power output, higher revs means less torque. Torque doesn’t determine acceleration, it puts an upper limit on possible acceleration and possible speed at a fixed resistance. Acceleration is a function of power, torque, resistance and rotation frequency. Acceleration always, always, always requires an increase in power output.
In short, your bike is pulling harder at 9k vs 3k at the same gear because you are generating more power at 9k RPM.
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