Meji Circuit bomba de frenos pẹlu 19.05mm piston opin ti wa ni ṣe nipasẹ simẹnti irin.O ni ibamu fun Porsche 911, 912 & 914. Awọn itẹjade meji wa pẹlu iwọn ila opin okun ti 10mm
Ọdun 930 1975 – 1977
Ọdun 911 1969 – 1977
Ọdun 912 1969 – 1969
Ọdun 914 1970 – 1972