Hi, an email buddy in the UK asked me for this info; he needs the bore diameter of piston on the handlebar master cylinder.
Not sure why exactly but he was in a major bike accident & has bad wrist damage & is trying to fit a more usable brake unit to his MuZ Skorpion.
If you reply Please state the year of the bike you have. I guess any answer would come from someone who has unit apart for maintainence.
You can also reply to me direct at suzukizone@yahoo.com
Big thanks to anyone who can help.
Douglas :)