I found this article on Bike Radar to be very helpful while I was learning about the different head tube/steerer options out there:
https://www.bikeradar.com/features/t...e-to-headsets/
I am using a 44 mm head tube with a Cane Creek EC44/40 lower and ZS44/28.6 upper to run a tapered steerer suspension fork. The EC lower has a 12 mm stack height.
