Having bought an mc16 front wheel & discs that I am now not using, I have a pair of 310mm diameter discs for sale.
They look like brembos (but I cant be sure) all I can say is they fit the front wheel hub perfectly & are in great condition.
Aprox 11mm offset - marked up as MZ1 min thick 4mm.
If anyone is interested I will bring my vernier home & measure up properly & send pictures.
To be honest I cant think of any standard bike they could be off !!
£60 plus postage..

Admin: I think 310mm discs are most likely CBR1100XX Blackbird.