MZ/MuZ Riders

In the process of repairing what was my Sport Cup into something that is no longer a sport cup (no fairing).

I want to mount a mirror into the boss on the Grimeca Master Cyl for the purpose, anyone any idea what the thread size is ?

Is it M10 fine pitch or something odd? Nothing I have seems to fit.

Thanks.

The standard thread for mirrors should be M1.5 x 10, same for ETZ250.
Use a thread caliper

Have a look at your previous posts< I posted two replies there with the info you need

I think it`s a Yamaha system used where it`s a LEFT hand thread on one side, ( so you have to use Yammy mirrors) cunning A!
there are adapter / converters on Ebay for a < a fiver.
Eric.