Ritchey WCS External Cup Threadless Headset

The WCS External Cup EC Threadless Headset the reliable workhorse of the Ritchey threadless headset range. This smooth and reliable specimen features lightweight, precision-machined aluminum cups, sealed cartridge 45/45 degree hybrid ceramic bearings with a titanium coating, and comes packed with Ritchey Grease and a sealed design promises minimal penetration from the elements.

Specifications:

• Material: Alloy
• 1":
  • Stack Height: 28 mm
  • Stack Height Upper: 15.5 mm
  • Stack Height Lower: 12.5 mm
  • Headtube ID: 30.2 mm
  • S.H.I.S. Upper: EC30/25.4
  • S.H.I.S. Lower: EC30/26
  • Bearings: 41.0/30.15/7 mm 45 deg. /45 deg. — sealed cartridge (ACB) — titanium coated
• 1 1/8":
  • Stack Height: 28.5 mm
  • Stack Height Upper: 15.4 mm
  • Stack Height Lower: 13.1 mm
  • Headtube ID: 34 mm
  • S.H.I.S. Upper:EC34/28.6
  • S.H.I.S. Lower:EC34/30
  • Upper Bearing: 41.0/30.15/7 mm 45 deg. /45 deg. — sealed cartridge (ACB) — titanium coated
  • Lower Bearing: 41.8/30.5/8 mm 45 deg. /45 deg. — sealed cartridge (ACB) — titanium coated
• Weight: 106 g
• Color: Black
• Type: Threadless