Originally Posted by
delbiker1
If one was to reread one's original post, one might figure out that the question was answered in the description. One does not need to know what frame it is to know that 1-1/2" does not fit into 1-1/4" or 1-1/8". If I could invent an adapter that would make this work, I could rule the world.
If one knew anything about frame building, one would know that a 44mm head tube will fit nearly any size steerer tube by changing the upper and lower headset. With a 44mm head tube, you can use a straight 1 1/8" steerer, 1 1/8" to 1 1/4" tapered steerer, 1 1/8" to 1 1/2"tapered steerer or 1 1/2" straight steerer just by changing the headset.
For the OP, this ENVE fork may be an option for your Focus
https://enve.com/collections/gravel-...s/ar-disc-fork