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On Tein's website it says the adjustments should be done like this:
"You can adjust damping force with the adjustment dial, or click, on the shock absorber. Turning it clockwise, the end is level 0 (zero): the stiffest. Turning it counterclockwise from there, the damping force becomes softer. You can notice a click at each level. The 16th click is level 16, the softest damping force. If you lose count, just go back to level 0 and start again."