Sixpack 2in1 headsets are supplied with 2 fork cones (1x for straight (1-1/8") steerer and 1x for tapered (1.5"-1-1/8") steerer). So you have the possibility to use one headset for 2 different forks. Of course, Sixpack uses high-quality sealed industrial bearings, lightweight bearing shells and slotted fork cones for tool-free assembly. Sixpack also supplies the headset incl. claw for 1-1/8" and an Ahead cap.