Semi-integrated headset from XLC

Fit both forks with tapered steerer 1.1/8" - 1.5", and forks with straight steerer 1 1/8"

The upper cup measures 44mm on the outside and 28,6 mm on the inside.

The bottom cup measures 55mm on the outside and 39,8 mm on the inside.​ 

2 bottom cones are included. 

one with an inner diameter on 39,7 (1,5") and one with an inner diameter on 30 mm ( 1 1/8") 

With topcap and expander bolt