Clearly the blocky guys slot into the round guys and then are bolted in. Then the round guys rotate in something. What do the faces of the blocky ones look like?
They kind of seem like they'd fulfill the same purpose as brake shoes (positionable flat face, 4 of them) but are clearly not brake shoes. Unless they're for modern rod brakes or something mad.
Just flat. Ruler added for size. They were chucked in with some rack spares (p clips and the like) and are aluminium alloy. But the rack spares thing might just be a red herring / me throwing them in a bag!
Clearly the blocky guys slot into the round guys and then are bolted in. Then the round guys rotate in something. What do the faces of the blocky ones look like?
They kind of seem like they'd fulfill the same purpose as brake shoes (positionable flat face, 4 of them) but are clearly not brake shoes. Unless they're for modern rod brakes or something mad.