Thanks for the photos Pedro-ktm, your bike looks great!
What is the name of the club that organises the races you compete in?
Another thing to consider about tyres; alot of riders prefer to use treaded, trackday tyres such as Metzeler Racetecs instead of full slicks because at the speed they are running at club level, on lightweight bikes, its hard to get slicks to full working temperature, but treaded tyres get hotter, stickier and grip better.
One of the really fast guys i used to race against in MZ250 would cut his Dunlop slicks with a special tool to make his own tread pattern. He found it helped the tyre run hotter during a race and made more grip.
_________________
After years of moaning about immigrants now i am one...