With a quantity of ten pieces, the Bolt,hex 8x100 is the most used part in the E-13 CRANKCASE diagram.
Parts such as the E-13 Crankcase: Bolt,flange,6x105, Plug A,oil Path, Bolt,flang,8x145, Bolt,hex 8x100 are included in the Cb650 1981 (b) E-13 Crankcase parts fiche.
The E-13 Crankcase is made up of components including this Crankcase Set which is the most expensive.
