Whats blocking rotation speed when adding Torque in Radians?

Hello,
I am trying to build a mechanic: you hold A or D, you rotate a motorbike in 2D plane.

However, I find out, that with Adding Torque, it seems I reach some rotation limit. I can rotate up (lets say) to 360°/sec and then the rotation stops cumulating.

I thought it was because I use the Timeline to smoothly add torque, but even when I hardcode the value in the Add Torque node, I cannot beat some rotation threshold.

Even when I hardcode hiiigh value, the rotation is fast for a moment and then slows down to the “threshold”.

Is there some rotation limit? Any help where I could find it? Some force.(Angular/Linear damping forces set to 0)
Motorbike holds together with physics constraints, but changing their values makes no difference.

Help is much appreciated.

Sounds like this:

image

You can find it on the mesh component. Does it help if you crank it up?