I'm building a bike for which I bought a 2015 Cube Aerium HPA Pro frame. I also have a Focus Evo 6th element fork. The fork is tapered from 1.1/8 to 1.25 inch, my headtube is 44 mm inner diameter. The headtube takes a semi-integrated headset. When looking for a headset I am not able to find ZS44/28.6 upper, ZS44/33.0 lower stack. I can only find integrated headsets with these meausrements. My question is whether someone knows where you can get a semi integrated stack with these measurements in Europe, or if it is not possible if there is a solution that I can use, like thickening the fork with a aluminium ring or something.
Furthermore, is there a way to let integrated headsets fit in a frame that is meant for semi-integrated headsets. many thanks in advance