The Classic External Cup EC Threadless Headset is the reliable workhorse of the Ritchey threadless headset range. Now available with our timeless high-polish finish, this smooth and reliable specimen features lightweight, precision-machined aluminum cups, sealed cartridge 45/45-degree bearings, and comes packed with Ritchey Grease. A sealed design promises minimal penetration from the elements. The Classic Threadless Headset adds that classy and reliable detail your bike deserves.
 
Material: Alloy
Threadless
Stack Height: 32mm
Stack height upper: 18mm
Stack height lower: 14mm
Headtube ID: 34mm
S.H.I.S. upper: EC34/28.6 (1 ⅛”)
EC34/28.6 (1 ⅛”) bearing: 41.8/30.15/8mm 45°/45° - sealed cartridge (ACB)
S.H.I.S. lower: EC34/30 (1 ⅛”)
EC34/30 (1 ⅛”) bearing: 44/30.5/8mm 45°/45° - sealed cartridge (ACB)
Weight: 126g
Colorhigh-polish:  silver
 
Incompatible with Ritchey WCS Carbon forks with integrated 45° crown race