Front Brake Master Cylinder Rebuild Kit?

Brembo stylema either 30mm pistons or 34mm, other bikes use these calipers. Just order for right size pistons. I think 30mm Google Search
That's also good to know and the seals to match, but I'm really talking about the master cylinder on the handlebar. The ones on the 2.5 are not used on any other Triumphs. I wish companies would start stepping up to provide things like that and clutches (Barnett says "no") for the 2.5s, as we have for the 2.3s