Is there someone who knows about weight reductoin stages: 1 , 2 , 3 ?
I have take off some parts (back mudguard-light, mirrors, back hand bars)
but is more I can take off?

The weight is in the frame / forks / rear swing arm. i took my bike greenlaning last summer and got the courage to do some small jumps and all the time the bike wanted to land with the front wheel first, as it is very top heavy. never again... the experience almost scared me permanently.

You can remove the rear foot rest and hangers ,but the biggest weight saving will be when you change the standard exhausts.

Yeap, I change the exhaust and the air filter and put the PC III.
I realy need -10kg but how?
I'm thinking of removing the Air Box and puting a filter..... any ideas?

anybody thinking of going to a gym or running at dawn

He HE HE, your right there ! lay off the pies,thats the biggest weight saving you can make.

I have removed my pillion pegs and was surprised at how heavy each of them are at about 3 Kilos!!! so take them both off and its another 6 Kilos of weight off the bike.