Akrapovic Silencer Clamp P-R78 Akrapovic Akrapovič P-R78 silencer clamp, made in Slovenia. BMW R 1200 GS BMW R 1200 R BMW R 1200 RS BMW R 1200 RT BMW R 1250 GS BMW R 1250 R BMW R 1250 RS BMW R 1250 RT Ducati Monster 1200 Ducati Monster 821