Ducati 749DARK Owner's Manual page 39

STANDARD factory setting is as follows:
compression: 8 clicks;
rebound: 8 clicks.
To change the preload of the spring inside each fork leg,
turn the hex. adjusting nut (2) with a 22-mm hexagon
wrench.
Preload setting range (A, fig. 33) is from 25 to 10 mm.
Factory setting is 20 mm.
Important
Adjust both fork legs to same settings.
E
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