On this parts fiche the Dowel,pin,12x20 is the most specified component.
The sub assemblies and components that make up this E-5 Cylinder include this Cylinder Comp., the most expensive part.
Parts such as the E-5 Cylinder: Bolt,flange,6x25, O-ring,78.3x2, Dowel,pin,12x20, Gasket,cylinder (mca) are included in the Xr250r 1982 (c) E-5 Cylinder parts fiche.