Kevin,
In what way?
Would it help if either of us added a smiley to the facts?
From where I'm sitting, I've only answered the question. (I'm a qualified engineer and am currently online to get away from an astro-physics assessment I've got to complete within the next few hours. Studying that degree for fun generated by the interest in the physics of motorcycles.)
I own a CBR600 and a 2003 Hayabusa (black special UK edition) that is heading for 12,000 miles in under a year and I've not had chance to ride much due to a lovely baby daughter arriving in December.
Hayabusa engines do vibrate, hence all the weights and rubber. What else could I say? Even the footrest brackets are rubber mounted to the frame!
Have you felt how light the rear wheel spindle is? That is somewhere Suzuki engineers could reduce weight, but imagine how they must have felt being forced to add weight to certain areas.
Lots of people say (here) they vibrate around 4700rpm/90mph, so imagine riding for a tank of fuel at that speed when the bars are buzzing. I agree they do vibrate around that speed and even with standard weights it's not great. Unfortunately it was the agreed speed on motorways/autoroutes/autostrada on a recent trip I did. I'll agree a different speed next time. Oops!
Out of curiosity, how would you answer less brutally?
(Or another way of thinking, imagine how you would feel if I was being brutal?)
At the end of the day, I was just trying to help a fellow Hayabusa rider (and others that might do the same) by pointing out why the weight was there.
I agree with Turbo-Torch.
Steve