Peak Horsepower

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dougl said:
Of course not. I think we all know what we’re talking about here. We just don’t know how to say it.
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Well since you know what we are talking about, tell me why it is said peak torque, as in alot. As in the most. Is at 4k, when clearly you feel the power pull way beyond that? This was why I posted this thread.
 
Well then like AZBEST I don't understand difference between torque and hp. And please don't try to explain it again. Done.
 
maurice said:
OK, my point was shifting at PEAK TORQUE 4K RPMS will NOT give fastest run. I don't get it.
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When you accelerate hard you feel the torque trying to dump you off the back of the bike. When you shift at 4000 the torque drops significantly and you don't feel much pull in the next gear. Because of the flat torque curve, the bike keeps "pulling" all the way to redline. When you shift at 6500 the torque doesn't change much when you move into the next gear, and the bike continues to pull hard.

Most of the gears cause the torque to be multiplied. If you ride a bicycle with gears and put it in the easiest gear and mash the pedals as hard as you can, you can probably make the wheel spin - lots of torque multiplication. Put the bicycle in hard gear and you might not even get going because torque has been reduced so much - even though your legs are producing the same amount of torque.

With a motorcycle (or car) first grade multiplies the torque by a fair bit, giving you enough twisting torque that it's possible to twist the bike around the rear axle hard enough that you do a wheelie. As you get higher in the gears you get less multiplication so you feel less pull.

If you want to accelerate fast, keep the bike in the "power band", or the rpm range where you have maximum torque
 
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