The Ritchey External Cup EC Threadless headset features a smaller upper bearing to save weight, while the oversize lower bearing is designed to handle loads. Deep bearing cups promise solid insertion.
Product Technical Details
Material: steel/plastic
Threadless
Stack Height: 28.9mm
Stack height upper: 15.7mm
Stack height lower: 13.2mm
Headtube ID: 34mm
S.H.I.S. upper: EC34/28.6 (1 ⅛”)
S.H.I.S. lower: EC34/30 (1 ⅛”)
Bearings: retainer ball-bearing
Weight: 156g
Colour: black
Incompatible with Ritchey WCS Carbon forks with integrated 45° crown race
Ritchey Headset SUPERLOGIC External Cup (EC) Threadless