In this schematic the "Ring,bearing Stopper" is used most often.
Parts such as the Rear Cushion Lever (model K1/k2/k3): Shaft,rr Cushion Lever Ctr, Bearing(37x47x20), Nut 12mm, Lever Set,rr Cushion are included in the Dr200se 2005 (k5) Usa (e03) Rear Cushion Lever (model K1/k2/k3) parts fiche.