Ducati Supersport Owner's Manual page 233

- compression: loosen adjuster (1, Fig. 153)by 12
clicks (from fully closed position);
- spring preload: Position the ring nuts at a
distance (A, Fig. 154) from the endcap of 19 mm
(0.75 in).
Warning
To turn the preload adjuster ring nut use a pin
wrench. Pay attention to avoid hand injuries by hitting
motorcycle parts in case the wrench tooth suddenly
slips on the ring nut groove while moving it.
Warning
The shock absorber is filled with gas under
pressure and may cause severe damage if taken apart
by unskilled persons.
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