This boss is composed of 3 pieces: a titanium boss that can be welded to the stays, a stainless steel ring for the brake return spring, and a steel post that threads into the boss. The titanium boss is supplied un-mitered, and must be mitered to fit the stay by the builder. It is machined from 6/4 titanium bar stock. The steel post has a M10 x 1.5 external thread to fit the boss, and a M6 x 1 internal thread for the brake mounting bolt. The brake pivot on the post is 8 mm outside diameter x 16.4 mm long; all V-brakes and cantilever brakes will fit.
For pre-2008 Shimano and Avid Ultimate Shorty brakes, ask us to substitute in our longer post, BK2014, as it allows 1/32" more room under the brake pivot.
FOR BK0007 AT 50% OFF SEE OUR CLEARANCE ITEM CLBK0007 (HOLE SLIGHTLY OFF CENTER).
Item sold individually.