Ken what's ypur purpose??? Remember for top speed, the peak of you're power curve needs to be the saem as your drag limted speed. At what RPM are you reaching drag limited speed at right now??? At what RPM is your peak horse power? How much does the power curve drop off from peak HP to redline???

Waht is the range of your powerband? For example peak my bike makes 96HP, at redline it makes 90HP, the other point that it makes 90 HP is 10,000 RPM. Therefore my powerband is 10k-14k. For max acceleration though I shiftr at 13k, and my gearign it tight enough that the RPM's only drop 2k, so then I have more than 94HP all the time.

This is all easier to explain visually with a power chart.

Remeber peak HP means nothing. It's that average HP throghout that powerband that is important.

In mathematics, you would use calculus to calculate that area under the power curve throughout your powerband.

I can figure out the optimum gearing for top speed, if you give me the folowing information:

1) a copy of you power curve from a dyno run

2) you rear wheel circumfrence, (measure this by marking a point on the pavement and rollign the bike forward and makign a seond mark)

3) your primary reduction, gear ratios (in your owners manual) and final reduction

4) the spockets you have on now.

I'll then assume about 2% wheelspin, and run those numbers into a excel spreadsheet I have.

Your bike makes what 140HP, and so does the Gixer 1000 and it does 168 mph, so your target should to have you RPM's in 6th gear at peak power, equal 168mph.

Now ot get max accelration, you need to figure out how to get maximum average power output all the way from the speed that equals you launch RPM in 1st to top speed.

I how I explained this well enough. Just give me all the info I asked for and I'll give you some objective recommendations.