A-AH226571-AI Sickle Assembly; Dual Overlap Strap, CourseOne New Aftermarket Replacement Sickle Assembly Dual Overlap Strap, Coarse Knife Fits John Deere (Fits JD) Flex Draper Headers This aftermarket replacement sickle assembly features a dual overlap strap design with coarse (serrated) knife sections, used on the cutterbar of Fits John Deere FD Series flex draper headers. The dual overlap strap configuration provides a secure knife attachment and supports aggressive crop cutting in demanding harvest