Hmmm....I'll try...it's to do with where the pivot points are located and the length of the dogbone....you change that pivot on the swingarm by just a matter of mm and/or change the dogbone length, and the length/effective angle of the shock will change...changing it's effectiveness one way or another.....under WOT, even the chain can have an effect on how it all works.
Like the way you'd expect a rear-end to drop under hard acceleration - when it actually raises on many bikes.
That's another advantage the 'stunters get from using those big rear sprockets, as the chain tries to shorten the wheelbase, it pulls the shock out and locks it up....same as having a short chain, really.
The dogbone connects to the pivot and converts the arc motion of the swingarm to linear compression of the shock for uniform performance. Because like the dogbone the shock is connected to the swing arm and the other side of the pivot as you shorten the dogbone, it moves the swingarm towards the bike, but also rotating the pivot so the adjusting movement on the swingarm doesn't compress the shock. The key is the pivot. It's centre is attached to the frame. Either end of it is attached to the shock and dogbone. So the force of the swingarm movement under load is transferred to the shock, so it can lock out the suspension. I can do a sketch if you need a better explaination
Happiness is not a destination. It is a way of life.
It doesn't lock, because it is made in Italy, and so the metal is probably some kind of cheese that flex's instead of staying solid. it's best if you also fit a slice of ham.
