Very useful Information. Thank you.
The suspension is really stiff. I compared today with F650 on the same road. I see that i can adust the rebound. I will try to set it to maxim slow.
I noticed that the preload adjustment doesn t work. The following days i am going to fill it with oil. Although i am going to keep it to minimum low.
The rear shock hydraulic preload adjuster allows the preload on the shock spring to be set remotely.
It works by having a hydraulic piston unit at the top of the shock spring connected to the remote adjuster.
When the remote adjuster is backed off fully, there is NO pressure on the hydraulic piston unit so the rear shock spring is at its maximum extension and so SOFTEST preload setting.
When the hydraulic preload adjuster knob is screwed clockwise, a piston inside increases the pressure on the hydraulic fluid in the adjuster.
This causes the hydraulic piston unit at the top of the shock spring to compress the shock spring so STIFFENING the shock preload.
If your preload adjuster is therefore NOT working i.e. it has run out of hydraulic fluid, then there is no fluid to cause the hydraulic piston unit at the top of the shock spring to compress the shock spring so the shock will be at its SOFTEST preload setting.
Re-filling the hydraulic preload adjuster will therefore only serve to make the shock STIFFER than it is now when it is used.
Are you sure that the rear shock compression damper setting (at the Left side bottom of the shock) is not jammed on 'High'?
Are you sure that the rear shock is not seized and so is unable to compress? You may need to remove the shock to test this if it cannot be seen to move when on the bike.
REFILLING THE REAR SHOCK PRELOAD ADJUSTER:
https://www.bmwlt.com/forums/k1200lt/84 ... shock.html