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WCS Switch External Cup EC Headset



A key component of the new Ritchey Switch System, Ritchey's newest headset upper is designed to specifically work with Ritchey Switch Stem to route cables, wires and hydraulic lines from the handlebar through to the bicycle frame. Cables are routed from the handlebar into the headset conduit, which sits on the underside of the Switch Stem and then travel through an opening on the front of the Switch headset spacers before passing through two channels on the top of the headset and into the frame. This system allows headset bearings to perform without any interference from cables, wires, or lines passing through the headtube.

Important: cable guide is included with Switch Stems.


About the Ritchey Switch System

The Ritchey Switch System is an innovative integrated system designed to easily conceal internally routed cables, wires, and hydraulic lines from the handlebar into bicycle frames with straight 44mm headtubes together with tapered 1-1/8" – 1.5" forks. The Switch System consists of three elements:

Tech Specs

Material Nylon + glass fiber
S.H.I.S. upperEC44/28.6
S.H.I.S. lowerEC44/40
Headtube ID44mm
Stack height upper23.7mm
Stack height lower14.2mm
Bearings51.80/40mm 45°/45° - sealed cartridge (ACB)
Interlocking spacers NOT included
Compression cap NOT included
Cable guide NOT included

Tech Drawing

  • Design

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