Not much other than commerciallly available brake cleaning solvent available these days AFAIK

Mrs B's R65LS used to be a bit incontinent in the rear brake department (the cam passes through the bevel box) & was improved by liberal application of brake cleaner using paper towels. Kept repeating until the towels came away clean. Got the brake working as well as it ever does. Sorted the cause of the problem eventually (BMW being "generous" with clearnace bewteen cam shaft & bushes) so not had to do it for a while. IIRC these shoes are unique to the LS model (larger diameter than the standard R65) so not that easy to come by (though EBC does make them) hence cleaning them up.

I have used Saftek for relining shoes for my MZ in the past. Cheaper at the time than buying new EBC replacement shoes & they work fine. Interestingly when the technician looked at the original linings the first thing he said was that the material was too hard for the application, indicated by them being glazed / polished. They have different grades of lining material & recommended one more suitable for the application. I provided a backplate & they turned the new linings on the back plate to get the correct radius. I used their Cleckheaton branch, though they are also in Telford.

Nigel B.