Husqvarna TC 450 Workshop Manual page 243

REAR SUSPENSION
Rear suspension
The suspension of this motorcycle is of the progressive type and consists of a
shock absorber, a series of linkages and a swing arm. The pre-load of the shock
absorber spring can be adjusted according to the driving and ground conditions.
Even the hydraulic damping can be adjusted from outside. Periodically check
the wear of the components.
Part. N. 8000 H1344 (10-2009)
J.3