Loose/nervous ish steering at high speed.

[Torsen]

My 1150r feels not good at 55 mph and up. It feels like I can twist the bar from side to side like I was driving slow. I think the steering should be heavier at high speed like a car?
And in corners it feels like it wont go straight ahead. What can this be?
I drive some gravel. The front tire is therefor Conti TKC-70.

[skylarmav1]

So the steering should be a bit lighter and easier at high speed, not heavier. Speed and balance are doing all the "heavy lifting." If it does feel heavy, check proper tire inflation as a first round of diagnosis.

[gregor]

You want to go straight ahead on corners?
Get a few more miles on bikes before confusing us more. Bikes are always easier to turn once you are on the move. Low speed manoeuvring needs quite a bit of effort on the bars.

[CycleRob]

Torsen,
1--What year bike?
2--How long and how many miles have you had it?

This wandering and unresponsive handling could be caused by worn wheel bearings, especially when you admitted to riding in the dirt.
A setting you can change that would cause these "undesirable-2-you" traits is excessive rear suspension preload, which I found to be very rare on ANY R1150R. Mine was so near the Max setting I had to shorten the fully adjustable Ohlins front shock to get neutral but stable cornering. Loosen the rear preload adjuster knob 3 turns and try riding it again. We cannot rule out Tire Pressures, possibly caused by an inaccurate TP Gauge.
BTW, I had a look at the tire tread and the profile (cross sectional curvature) which the write-up said is a compromise between dirt and road riding.

[Torsen]

I will check the set-up and the bearings.

[EasyBee]

Didn't you forget something?

Torsen,
We cannot rule out Tire Pressures, possibly caused by an inaccurate TP Gauge.