Ritchey WCS Logic 1-1/8" Threadless Headset: EC34/28.6 EC34/30 Black Nm 0 x 12mm Red Box

0 x 12mm Red Box of 100

} Aggressive tread

No-snag Velcro and Amara leather limit abrasion

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Replacement compression knobs for RockShox suspension forks

Ritchey WCS Logic 1-1/8" Threadless Headset: EC34/28.6 EC34/30 Black Nm 0 x 12mm Red BoxRitchey 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 Upper Stack Height 15. 4 S. H. I. S. Stem Clamp Diameter 28. 6 Threadless Defined Color Black S. H. I. S Lower EC34 Weight 110 Crown Race 30 Bearing Type Cartridge Color Black S. H. I. S Upper EC34 Lower Stack Height 12. 9