Semi-integrated headset (ZS) with steering stop for frames with 44mm head tube at the top. Our Blocklock ZS44 headset upper part ensures that your top tube and down tube are protected from contact with the handlebars, attachments and the fork bridge and that the lines and cables are not overstressed in the event of a fall. Compatible with all forks with 1 1/8" steerer tube (28.6mm) at the top.
 
blocklock steering stop with 164°
double-sealed angular contact ball bearing
stainless steel ball bearings
Centering ring made of glass fiber reinforced plastic with vulcanized seal
offset diameter (ID) 44mm