As i am not a speeder as i value my licence i rarely hit the 110 kmh mark however i do give it a squirt in the right places as you do and as yesterday was such a glorious day and the clouds were gone in Melb i had to catch up to a mate that left 10 mins earlier from a run we had. Thats when i noticed the vibration at 110 to 120kmh was more than noticeable. I was told by a mate of mine its the windscreen ? but it felt like it was coming through my boards and hand grips. so i looked at the front wheel thinking it was a balance problem but couldnt see any wobble and checked it when i got home as well has anyone else had this prob i wouldnt be game to give it a really good squirt as it felt as if it was getting worse as the speed went up. Its only done a hand full of kmhs and its still only a couple of years old or is it just the norm? Cheers Dazza

No it's not the norm,you could have lost a weight pull the front wheel and get it balanced also chech the tyre,check your head stem bearings,and the list goe's on.Charlie

Next time you are doing 100, put your left palm on your knee and you will feel a buffetting on your hand coming up from under the bike. It gets more pronounced at speed.
I have got wind deflectors (just arrived today ) so I am going to put them on and take it for a test run on the weekend see if it makes a difference.
 

Also, I havent actually taken the screen off yet, so I dont know if this makes a difference. But, I do find that there is a vibration that starts at 110 and then dissipates at a point after that. The vibration gets right though me, and I was told by a mate once that the vibation ends in your eyeballs and I find the same thing. Tend to notice when overtaking a slow vehicle, cause you dont want to spend too much time on the wrong side do you? Thats the only reason I know

 my heritage vibrates at about same speed ,it was from the screen on my heritage.is yours fixed or quick released? mine is fixed

Thanks guys for the replies my screen is a quick release will try a ride without it and its nearlly due for its 8k service so if the shield dont fix the vibe lets hope the guys who service it Will.. Its keeping the misses smiling any way.  cheers Dazza

 how did it go have you tryed it with out the screen