The biggest problem with WP PDS shocks is that they lack progression,
they are either too stiff on the small bumps or they bottom out on the
big ones. The telescopic needle has an innovative design that is much
longer than stock, gradually tapered, and collapsible.
This gives a much smoother more progressive stroke allowing the bike to track over the bumps more precisely and prevents the shock bottoming. We have also found that the shock rides higher in the stroke improving the steering of the bike.