Ritchey Classic Zero Stack Headset

The Ritchey Classic Zero Stack semi-integrated headset top tube, 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 silver Classic version of the Ritchey headset is fitted with industrial bearings. The aluminium bearing cup and compact precision bearing ensure long-lasting riding enjoyment.

Ritchey Classic headset bearings:

the cartridge bearings with stainless steel raceways and water-repellent Ritchey Special grease ensure robust and durable bearings

Semi-integrated Zero Stack headset system:

Zero Stack headsets require frames with mountings for the Zero Stack cups. Unlike conventional external cup headsets, the Zero Stack 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 thread diameter: 44 mm, 8 mm depth, steerer tube diameter 28.6 mm, 1 1/8 inch

Ritchey Classic Zero Stack 44 Headset Technology

• Full-contact industrial bearings with raceways
• Angled raceway at the fork crown
• Aluminium bearing cups
• Height: 10.1 mm, cup width 44 mm
• Bearing dimensions: 41.0 x 30.15 x 7 mm 45°/45°
• Weight: 51 grams

The installation claw 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