Yille, have you fitted your back tyre yet ?
Just a word of caution about balancing. I fitted a new Pirelli MT90 rear tyre the other day without balancing it and my bike nearly threw me off when I reached 117kph !
Then I tried to balance it myself by supporting the wheel on it's axle and rotating the tyre on the rim. A piece of weight was also clipped onto a spoke for balance.
Though it was much better, the bike started hopping again at about 124kph.
Eventually I took it to a tyre place and they balanced it on a proper machine. Now the bike is smooth to 160kph +.
On the front I run a TKC80 and it also has quite a few added rim weights for balance.

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2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.