You obviously need more titanium.
And maybe a bit more carbon fibre. Seat base, perhaps?
Titanium reaction rod?
Seriously though, thinking about it, nothing springs out as an obvious place to save weight. In contrast, for instance, the V35 Imola (which would really benefit from saving a kilo or two on account of the moderate power output and already fairly low weight) has a number of really obvious points: the seat is far too heavy, the bracket for the seat is steel (could be drilled out a bit, could be aluminium or carbon or titanium), the steel tank could be replicated in aluminium, the foot-pegs could be replaced by aluminium items, the list is long.
On top of what you have already done, @Lucky Phil, I can't think of many more obvious possibilities to save some weight on a V11. A Lithium-ion battery perhaps, if there isn't already one in there. Otherwise...