Originally Posted by
kamtsa
When I change the right gear to 6, sometimes it changes to sixth gear and some times it does not. I it is kind of unpredictable. In some cases it even take 5-10 secs to actually shift. By deterministic I mean that if I turn the shifter to #6, it will always change immediately to the 6th gear.
Kam
I would use the word 'precise', or 'positive' to describe what you mean. Deterministic is not the right word I think.
On the problem with your gears, it sounds like a workshop tune up would sort most of the problem out. It is true that some micro adjustment might need to be done when on different front chain rings, but that is predictable as the chain line deviates to the outer and inner rear sprockets. If you visualise the chain, you will see how at the outer and inner sprockets, it is pulled to the left or the right and might rub the rear of the front derailleur cage.