I don't have a manual for my new bike yet so please could someone tell me about this linkage?
Is it just to adjust the height of the gear selector and does it have any effect on function of the quick shift pro?
It's more to do with the fact that you rotate the link rod in one direction to effectively lengthen it and in the other to shorten it which means it needs to screw into both joints at the same time, in one direction and out of them in the other.