Campa brake adjuster from very first gen. 1968? no-name calipers NOS. The metal wheel has serrated edge, does not accept rubber ring. Post date November 21, 2023 ← Brake arms: 2 x CAMP BREV INT standard drop #2019 and 1 x ‘inner’ arm shallow drop → Allen key sleeve ‘nut’ to secure rear brake to certain patterns of rear bridge. Regular 6mm thread, accepts 6mm a/key