420 rudder stock for N1 blade Allen 420 RUDDER STOCK FOR N1 BLADE A7420L For dinghy 420 - - Class legal 420 rudder stock. Precisely engineered rudder stock that is lightweight and stiff - resulting in ultimate feel for the sailor. This rudder stock comes without pin or pintles. Suits N1 rudder blade. Click PDF logo to open detailed drawing. Technical documents can be downloaded here