Ritchey WCS Semi-Integrated ZS Upper Headset

A dependable and ultra-smooth headset from the Ritchey WCS Series, the Semi-Integrated ZS Upper Headset is designed for bicycles with semi-integrated head tubes. It features high-quality stainless steel angular contact cartridge bearings, packed with Ritchey high-webbing grease and protected by titanium coating for enhanced corrosion resistance. Whether for endurance rides or demanding conditions, this headset delivers precision steering, longevity, and reliable performance.

Key Features:

• Designed for semi-integrated (Zero Stack) headsets

• Full complement stainless steel angular contact cartridge bearings

• Ti-coated bearings for superior corrosion resistance

• Packed with Ritchey high-webbing grease for durability and smoothness

• Lightweight and easy to install

Specifications:

• Material: Alloy

• Stack Height: 7.3mm (short) / 12.4mm (tall)

• Steerer: 1 ⅛”

• Headtube ID: 44mm

• S.H.I.S.: ZS44/28.6 (1 ⅛”)

• Bearing: 41.0/30.15/7mm 45°/45° sealed cartridge (ACB) – titanium coated

• Weight: 43g (short) / 49g (tall)

• Color: Black