High-speed stability off our CB1100

[Riko_imp]

Since a few weeks I'm a happy owner of a black CB 1100 EX
and rode till now the 1500 km.

The CB runs absolutely great and makes a hell of fun. But I noticed that up to about 140km / h, the bike is great on the road, while above 160 km / h I got the impression that the CB becomes a bit unstable. I drive solo and bring with me 185m about 90 kg on the scales. Reasons could be of course the fork & shock absorber settings. But I also suspect the Dunlop D205 as a source of the problem.

How is it with you? Do you have the fork & shock absorbers adjusted differently? And maybe someone has a direct comparison of other tires with regard stability?

I have the same "issue" as you, dunno if its a real issue or more a point of critique, but I made a topic about this as well, didnt notice you started one before.

http://cb1100forum.com/forum/showthread.php?tid=7935

Whats the nature of your unstability you are refering too? Mine is a slight wobble of the handlebar...

Everything is still stock, except for a Road Comet windscreen with a high Aero touring shield.

And the moment I noticed that at topspeed (171km/h = 107mph) there was a lot of wind, 35km/h = (22mph)


EDIT:
hmmmm, most important, I did forget to mention that I did ride with a huge topcase, 55 litre Givi E55 Maxia 3



I assume this could cause the front to wobble at high speed?