I need to change it, pls what is the equivalent of Agip F1 brake fluid super HD DOT that the owners manual says ???
The DOT 4 or the DOT 5.1 ???? Thanks

Leonardo, use any DOT4 brake fluid. DOT5.1 would be ok, too but not DOT5 ! DOT5 is silicon based and cannot be mixed with the other types.
DOT5.1 has a higher boiling point but also much shorter changing intervals so unless you race the bike stay with DOT4.
What manufacturer it is from is not important.

G.

Thanks paso750 !!! Do you know how many i need to buy for change rear an front brake and clutch ?? 250 ml or 500 ml bottle ???

250ml is probably sufficiant but I guess it depends on if you want to totally flush the system.
Brake fluid is not expensive. I guess I`d take two 250ml bottles You can always bring the other one back if not needed.

G.

Doing the work, why do not replace the clutch fluid, too?
Ciao

be aware that braking fluid is hygroscopic. once the seal on the can is opened the proces of saturation is starting. So, buy little cans. I don't use fluid from a bottle older than 2 years.

Bertus