Just got my track crown in-
Has to be one of the nicest and lightest crowns available. The investment casting is superb, the blade sockets are darn near perfect, and the steerer insertion is spot on.
It uses 24mm blades.
This is my first venture into building a track frame- I wonder if OS tubes might not look right with "skinny" look of the round bladed forks, but then it might also accent them nicely..........decisions.