Semi-integrated headset (zs) for frames with 56mm head tube below. In our zs56 headset lower section, the combination of stainless steel angular contact ball bearings and sophisticated seals ensures longevity with minimal maintenance and thus more carefree time in the saddle.
 
double-sealed angular contact ball bearing
stainless steel ball bearings
headset base with vulcanized seal
IPS - Internal Protection Sealing
offset diameter (ID) 56mm