All shocks become worn or damaged after long periods of use, so each Falcon damper is completely rebuildable rather than being a 'throwaway' unit. Each unit may be completely stripped down to it's component parts so that any worn or damaged Items may be replaced, so as to restore the unit to it's original working order. The design of the damper piston also enables the compression and rebound damping to be fine-tuned Individually to suit different applications Each pair of Falcon shock absorbers is assembled based on rider weight, length of shock and intended use. Even different riding styles can call for subtle changes in the specification for each customer. We take the standard specification for each bike and then modify it as necessary for each individual customer.