greetings tio jaimito...
this post... the last post by crash... and this post by drxbmw... tells you how to do it...the 1/3 of total travel is a startting point... butts in the end its almost always 1 1/4 to 1 3/4 inches...
i can feel the difference between 1.25 and 1.5 and 1.75 inches... there is a sweet spot...
just like in a race car...
1) heavy steering feels like you are turning the wheel but the front end wants to push to the wall... generally when the sag is too high your bars will feel heavy... when you push the bars they feel heavy like there is lotts o resistance and you get the sensation that the front end is going off the road...
2) loose steering feels like the smallest input on the wheel will snap the rear end loose and cause a spin out... generally when the sag is too low you bars will feel loosy goosy... when you push the bars there is no resistance and you will feel like the moto wants to turn fast and you get the sensation that the moto is turning so fast the back end wants to come around...
3) neutral steering feels like there is minimum resistance butts not loosy goosy... the sensation is the moto will go where you are looking completely effortlessly... thats the sweet spot... when you get it there you will know it... cause the attainment of enlightenment will blow your mind...
butts remember... there are more pieces to the puzzle... sag dampening rebound springs... front forks... rear shock... all intermingled...
j o