- Material: steel
- Threadless
- Stack height: 29.8mm
- Stack height upper: 16.8mm
- Stack height lower: 13mm
- Headtube ID: 34mm
- S.H.I.S. upper: EC34/28.6 (1 ⅛”)
- S.H.I.S. lower: EC34/30 (1 ⅛”)
- Bearings: semi-cartridge (SSC)
- Top cap included
- Weight: 146g
- Color: black
The Ritchey External Cup EC Threadless headset features a smaller upper bearing to save weight, while the lightweight, precision-machined aluminum cups are deep for solid insertion.