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Ritchey WCS Logic 1-1/8" Threadless Headset: EC34/28.6 EC34/30 Black. The Ritchey Logic WCS threadless headset features angular-contact cartridge bearings.Logic WCS uses angular-contact cartridge bearings
- TECH SPECS
| Color | Black |
| Lower Stack Height | 12.9 |
| Bearing Type | Cartridge |
| Crown Race | 30 |
| Weight | 110 |
| Defined Color | Black |
| Upper Stack Height | 15.4 |
| S.H.I.S Upper | EC34 |
| S.H.I.S. Stem Clamp Diameter | 28.6 Threadless |
| S.H.I.S Lower | EC34 |