i dont know about for fixed but for bmx them hubs are shite, i know a large handfull of people who have broken the flanges.
The spoke holes are very close to the outside diameter of the flange. Looks to be no reason why the pitch circle diameter of the holes can not be decreased to give more material to resist to the pull of the spokes.
The spoke holes are very close to the outside diameter of the flange. Looks to be no reason why the pitch circle diameter of the holes can not be decreased to give more material to resist to the pull of the spokes.