Originally Posted by
bampilot06
Not sure where the cranks or rotors cost come in. The point of the group set is too replace the shifters and derailers that you have, and work with the cranks, cassettes and rotors you have. Quick cheap upgrade to wireless.
I mean sure, but that in itself makes the proposal super niche. As I remember Wheeltop didn't even offer hydraulic calipers when they first started but after people asking for a more complete groupset they started offering them, granted they are pretty hideous. Point being, an "upgrade kit" of a groupset isn't going to do anything to penetrate any market share