Project 550...

The completion of the CB550 brake drum repair that begun in a previous post. The process has essentially seen the old brake liner machined out, a new brake drum from an Austin Metro (seen in the first photo) machined and threaded and the hub threaded to match. The liner was then screwed in with locktite (left hand thread) and skimmed to the correct I.D. As far as I'm aware there has never been a brake liner on any vehicle that has been screwed in but, due to the way these hubs were made and the lack of spares, this was the only solution. Thankfully it has been successful and the hub can now go off for powder coating.

Voila!