With a quantity of four pieces, the Stud 8x25 is the most used part in the SPECIAL MARKET (E17) (GS400C,EC,N:~F.NO.71031) (GS400EN:~F diagram.
A sample from the products for the Special Market (e17) (gs400c,ec,n:~f.no.71031) (gs400en:~f include: Ring,piston, Spring, Lock Washer, Circlip,fork Oil Seal.