A word on these boxes.
1) The oil you use makes a difference to the quality and smoothness of your shift.
2) Sprint gearboxes require a more positive shift than most Japanese machines do in a lot of cases.
3) They improve a lot the more kilometers you put on them.
I use Motul semisynthetic and it gives me good smooth changes.
I have used this oil on a number of my bikes for this reason.
DaveM
