Of all the components that make up this Steering Stem (model D) the Ball has the lowest price.
In this schematic the "Ball" is used most often.
Parts such as the Steering Stem (model D): Seal,steering Upr Dust, Race,steering,inner,upper, Bolt, Holder,handlebar are included in the Dr250 1982 (z) Usa (e03) Steering Stem (model D) parts fiche.