2007 Rear Master Cylinder or crossover
 

So I've read that various CR masters crossover, but on the earlier bikes the master has the bottom mount hole offset almost 1cm further away from the body than the top hole.

I made a template and tried to match up YZF, RM, CR etc at trail ride. All those seem to have mounts parallel to the main bore. Surely they haven't specified an orphan?

Also mine says 3/8 on it. I've seen replacement of BE250522010 listed (pictured) as 1/2 and 11. Suppose 11 is closer but. . .