I've been thinking about the adjustable head angle inserts that Commencal, Corsair (others?) are using. Why not make simple machined reducer inserts from 1.5" to 1 1/8", but machine in the appropriate angle to allow for plus or minus 1, even 2 degrees in head angle. These could be used on any 1.5" frame.
Is this already being made?
Is this already being made?