No - I think what people are saying is the bike can't go as fast as that person's math said it could, which is true. I have a feeling that the original poster has a bad value for the rear tire, which made the speed larger than it should have been.

The people said thatbecause it couldn't reach that speed it couldn't pull to redline, assuming 180 was the real top speed it was geared for.I don't know if the bike could pull to it's real top speed, and I'm not sure all of the people that posted don't know that either. It is true it won't hit 180, but at it's real top speed somewhere around~160 mathmatically, maybe? The question is, how close to 160 can the bike get?

If you give your bike a sproket advance for torque you loose top speed... you might have enough torque to go faster, but if it won't rev any further you couldn't go any faster.

 

The other part of the tire diameterproblem is that the faster the bike goes the larger the diameter gets which has an effect on overall gearing too. Kind of similar to dragtires just not near as extreme. Its true that most bikes and cars cannot pull to redline inthe highest gears.....aerodynamic dragovercomes engine power and if you change the gearing without changing power it gets to a lower top speed but it gets there faster.I've seen hpin the mid to upper 80s up to about 97 onstock F4i's. A lot of the variance has to do with break in.The normal top end is about 152mph on agps. The RR went closer to 158 in 2003due to better aerodynamics and a little more power. I think they are over 160 now with the newer engines with a little more over- revand aerodynamics.

 

I ran my bike along rt.18 in jersey, I have topped my bike out at 157mph and that was by the gps on my bike, the speedo read about 175. I have some engine work and a full exhaust on it.

 

Honda consistently has speedometers with very little to no inaccuracy on the newer bikes. For example the 06' 600RR was 100% accurate in last years middleweight sportbike shootout when compared with the other big guns.

Another thing that has been omitted here is that it is not linear math, setting aside factors such as gas, rider weight,wind, etc, there are other variables that affect the gear ratio. Like AlterEgo said, as speed increases so does the tire diameter as they are pulled outward due to the centrifigal force. So the numbers in the equation will start to change at a certain speed, a speed which is dictated by the tires in question.

The 600 F4i has a realistic top speed just around 160mph, lows of 154, highs of just over 160. The 600cc motor is capable of being pushed harder however with modifications like a power commander. The world speed record was set on a Honda 600cc (it was an RR with a turbo, but still) just last August 2006 where they hit 201mph on the salt flats! Take a look at Jason's bike, the bodywork is not that different.

Phantom: What year is your bike, I'm really surpised the speedo was so far off, Honda is generally really good about that.

 

My bike is a 99 F4, see the thing is i have alot of engine work done, but also changed the sprockets. I have mor eout of the hole and lost top end, I dont need to run 160mph, but i do need to get it up on 1 wheel. Before the Sprocket change I could have run in over 160 no problem. As you can see the bike was torn down as far as possiable....there are before, during, and after pictures

[IMG]local://upfiles/13562/163B6630640546CFB37A352863E67216.jpg[/IMG]

 

The rest of the pics, for some reason i cant get them in 1 post

[IMG]local://upfiles/13562/3A95188A187E4CC3ADB01341D8968CC6.jpg[/IMG]

 

Sorry but its lonly letting me do 1 pic per post

[IMG]local://upfiles/13562/8119625D721844C39A154CAFDB0EF7F5.jpg[/IMG]

 

i didnt really read what everyone else posted but im sure someone else said this already but the bike could probably do that if there was almost no gravity and no wind ristance but when u take those into account it drops the top speed

 

With no gravity, the bike wouldn't have traction to move forward or stay on the rode. I'm just messing with ya, I know what you mean.

Gravity is about the only external force you want or need on the car/bike. There are two ways to increase traction. Add more mass, not the prefered method, as HP takes a hit. Or use aerodynamics to increase the downward force, which is what a wing is suppose to do. Its like free weight because it increases the downward force but doesn't add weight (not much anyway).

 

I was in a pissed off and was at 12k rpm in 6th, I am pretty sure the F4i can pull to redline as it was still pulling pretty good when I let off. Not sure about speed because my speedometer is broken.