Originally Posted by
digger
Both adapters are that number and both front and rear needed to be mounted upside down. The front adapter arrow points down, obviously, and the rear arrow points toward the BB.
It’s just that when a part has an orientation arrow and, for it to work, requires to be opposite that orientation just gives me pause.
It pretty clearly is not the front brake part, or the arrow would point correctly and wouldn't be labeled R for rear.
But if it works, that's fine too.