Ritchey WCS Zero Stack Headset

The Ritchey WCS Zero Stack semi-integrated bottom bracket, ZS44, for frames with a 44 mm press-fit diameter on the head tube and forks with a 1 1/8 inch / 30 mm steerer tube diameter at the bottom.

The WCS version of the Ritchey headset is fully equipped with high-quality industrial bearings. The 7075 aluminium bearing cups, as well as the well-sealed tapered precision bearing at the bottom and compact precision bearing at the top, are very easy to adjust and run with almost no resistance

Semi-integrated Zero Stack headset system:

The ZS headsets require frames with a mount for the Zero Stack cups. Unlike conventional external cup headsets, the Zero Stack headset cups are no longer pressed in, but are inserted into the head tubes. The name Zero Stack derives from the low profile of the headsets.

Zero Stack 44 bottom clearance: 44 mm diameter, 8 mm depth, fork-headset tapered seat 30 mm diameter, 1 1/8 inch

Ritchey WCS Zero Stack 44 Headset Technology

• Full-contact industrial bearings with stainless steel raceways
• Angled raceway on the fork crown
• CNC-machined aluminium bearing cups
• Extremely robust yet lightweight headset.
• Bearing dimensions: 41x30.15x7mm 45°/45°
• Height: 18 mm, bearing cup width 44 mm

The fork cone is included in the scope of delivery

Herstellerinformation: RITCHEY, Via Angelo Maspoli 21, 6850 Mendrisio, Ticino, Switzerland, http://ritcheylogic.com | EU contact: Cosmic Sports, Leyher Strasse 47, 90763 Fürth, Germany, https://cosmicsports.de