Ducati MONSTER 821, Owner'S Manual, Page: 216 / 295

Rear shock absorber adjusters
The rear shock absorber has external adjusters that
enable you to adjust the setting to suit the load on the
motorcycle.
The adjuster (1) located on the left side, on the upper
connection holding the shock absorber to the engine,
adjusts the damping during the rebound phase
(return).
Turn adjuster (1) clockwise to stiffen the damping, or
counter clockwise to soften it.
Ring nuts (2) and (3), located in the shock absorber
lower side, adjust the external spring preload.
To change spring preload, slacken the lower locking
ring nut (3). Then TIGHTEN or SLACKEN the upper
ring nut (2) to INCREASE or DECREASE spring
preload.
After setting spring preload as desired, tighten the
lower locking ring nut (3).
- +
2 3
1
Fig. 160
215