Have an old steel bike frame from the 1960's and i am fitting 9 speed campagnolo mirage groupset with ergo shifters
frame was originally designed for bar end shifters so has braze on cable guides (were downtube shifters are usually located)
I have seen on modern bikes they usually have two cable adjusters on the downtube
Will i need to remove the existing guides and replace with a braze on which allows the fitment of these adjusters or can the ergos and mechs function without them?
I will be increasing the rear spacing to 130mm, and changing the derailleur hanger is there anything else i need to look out for ?