Installing an external bottom bracket for the first time (campaign centaur) on a steel, Italian threaded frame. Instructions recommend the bb has a water training hole. Is this critical?
Also, when it recommends facing the bb shell what does this mean? It obviously has threads for the installation of the original bb.
Installing an external bottom bracket for the first time (campaign centaur) on a steel, Italian threaded frame. Instructions recommend the bb has a water training hole. Is this critical?
Also, when it recommends facing the bb shell what does this mean? It obviously has threads for the installation of the original bb.
First full build so any help appreciated.