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WCS External Cup EC Threadless Headset

Steerer Diameter

Description

The WCS External Cup EC Threadless Headset the reliable workhorse of the Ritchey threadless headset range. This smooth and reliable specimen features lightweight, precision-machined aluminum cups, sealed cartridge 45/45-degree hybrid ceramic bearings with a titanium coating, and comes packed with Ritchey Grease and a sealed design promises minimal penetration from the elements.

Tech Specs

Materialalloy
Stack Height28mm (1"), 28.5mm (1 ⅛”)
Stack height upper15.5mm (1"), 15.4mm (1 ⅛”)
Stack height lower12.5mm (1"), 13.1mm (1 ⅛”)
Headtube ID30.2mm (1"), 34mm (1 ⅛”)
S.H.I.S. upperEC30/25.4 (1"), EC34/28.6 (1 ⅛”)
S.H.I.S. lowerEC30/26 (1"), EC34/30 (1 ⅛”)
EC30/25.4 - EC30/26 (1") bearings41.0/30.15/7mm 45°/45° - sealed cartridge (ACB) – titanium coated
EC34/28.6 (1 ⅛”) bearing41.0/30.15/7mm 45°/45° - sealed cartridge (ACB) – titanium coated
EC34/30 (1 ⅛”) bearing41.8/30.5/8mm 45°/45° - sealed cartridge (ACB) – titanium coated
Weight106g
Colorblack
Threadless

Tech Drawing

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