Ritchey WCS Zero Stack Headset

The Ritchey WCS Zero Stack semi-integrated headset top cup, ZS44, for frames with a 44 mm press-fit diameter on the head tube and forks with a 1 1/8 inch / 28.6 mm steerer tube diameter at the top.

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

Ritchey WCS Headset Bearings:

The full-contact bearings with titanium-coated raceways, combined with high-quality, exceptionally smooth balls and Ritchey’s water-repellent special grease, ensure highly durable bearings.

Semi-integrated Zero Stack headset system:

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

Zero Stack 44 top mount dimensions: 44 mm diameter, 8 mm depth, steerer tube diameter 28.6 mm, 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.
• Height: 10.1 mm, cup width 44 mm
• Bearing dimensions: 41.0/30.15/7 mm 45°/45°
• Weight: 43 grams

The installation tool 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