You know you're addicted to cycling when you on finding out that the Centaur brake levers that you already have are 9g lighter than the Chorus brake levers that you were contemplating buying for then to burst out in loud cheering based on a truly heartfelt joy over this amazing fact. For then to rejoice that you can leave the brake levers where they are and just buy new time trial levers for the time trial bike you're building.

Come to think of it - building a time trial bike despite being last in all time trials ever participated in, and this number only being one, is a good sign of addiction as well I suppose.