HP Torque, Weight etc

[PowerDubs_imp]

I'm curious about what more HP / Torque at different RPM really means when one takes into consideration the weight of the bike.

Powerdubs showed with dyno tests that his modified CB1100 showed more HP / Torque compared with a number of other bikes. But how much power is negated by the heft of a bike? The '17ex weighs 562 lbs. I checked the other bikes PD refers to and found the following...not sure all these are "wet" weights, but still gives one the idea:

Z900RS SE 472lbs
2023 Suzuki GSX-R600 412lbs
2023 Kawasaki Ninja ZX-6R 430lbs
2016 Triumph Thruxton R 450lbs
BMW NineRT 490lbs
Indian Scout 551lbs
Triumph speed twin 1200 476lbs
Street Triple RS 414lbs
Ducati Monster 1200 465lbs

With the exception of the Scout, all the bikes are around 100-150 lbs lighter. So in the world of riding, does PD's modified, but heftier CB1100, still "win" vs any of these bikes? Does it take off faster from a stop? Does it have more "passing power" at 70mph? A higher top speed (if it had no limiter)? Or by "win" are we just saying "it makes more power"?

Is there a formula that says, for example, "all other factors being roughly equal: for every 25 lbs (or whatever number), a heavier bike needs 5HP more (again, whatever number) to be equal in acceleration to a lighter bike?"

I'm curious.

It's in the name... lb/ft

You can do the math for the lb.

But then compare that to the area of the curve- where is that lb/ft made...for how long?

How long until you get there?

How long until you need to shift?

How much mechanical advantage of the gear you are in VS the next gear are you losing by shifting?

Gearing is simply tq multiplication- so the moment you need to go to next gear you are at a great disadvantage as to someone who can hold a lower gear longer.

Not just in time allowed in a lower hear to accelerate... but if holding a gear longer allows you to be in a higher tq/hp area once you drop revs when you shift... that is the reason true race bikes have close gearing and need to sift often. High peaked but narrow power range- so very little drop when shifting.

A better build / tune is a wider range of good power- with gearing to match.

NOT- a magazine tune / what sells bikes..

There are an awful lot of people riding/driving 'fast' paper cars/bikes that get awakened at the drag strip (and street) with reality.