You can find all the replacement parts and components for your bike at Escapa.
Such as the Xlc HS-S01 Threaded Headset (22.2 mm)/26.4 mm/30 mm
Features:
Material: steel.
Double-sealed.
Height: 24+9.5=33.5 mm.
8 pieces, 160 g.
Dimensions: Ø 22.2/34.0/26.4 mm.