I'm looking for a rear rotor for an MC21. I've asked before if anyone has one and haven't heard anything, but if you do have one, please let me know.

Anyway, if no one has one, does anyone know if another model rear rotor will fit? The 3 bolt pattern seems to be a hard one to match up.

I've been talking to folks at Galfer and they list a 90-92 Honda RS250R rear rotor as having a 3 bolt pattern. They make a rotor for this bike. It's 187mm in diameter and 4mm thick. Can someone tell me if these are the dimensions for a MC21 rear rotor?

Thanks in advance.