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RL1 External Cup EC Threadless Headset

Steerer Diameter


Ritchey Fit external cup headsets offer all the precision engineering and renown reliability for which Ritchey headsets are known. Made with alloy cups, steel races, and retainer bearings, these workhorse headsets are designed for those builds where price matters and performance reigns supreme.

Tech Specs

Material - cup and crown raceAlloy Cups w/ steel races
Stack Height28.0mm
Headtube ID30mm (1") - 34mm (1 1/8")
S.H.I.S.EC30/25.4 – EC30/26.4 (1”) / EC34/28.6 – EC34/30 (1-1/8”)
Bearingsretainer bearing
Weight85g (1") - 114g (1-1/8")
Compression cap NOT included
Incompatible with Ritchey WCS Carbon forks with integrated 45° crown race

Tech Drawing

  • Design
  • Design

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