Ritchey Logic Threaded Headset

1-inch model:
• Bearing Type: Cup and Cone
• Color: Silver/Black
• Crown Race: 26
• Defined Color: Silver
• Lower Stack Height: 10.5 mm
• S.H.I.S Lower: EC30
• S.H.I.S Upper: EC30
• S.H.I.S. Stem Clamp Diameter: 25.4-24tpi Quill
• Upper Stack Height: 26 mm
• Weight: 130 g


1-1/8-inch model:
• Bearing Type: Cup and Cone
• Color: Silver/Black
• Crown Race: 30
• Defined Color: Silver
• Lower Stack Height: 10.7 mm
• S.H.I.S Lower: EC34
• S.H.I.S Upper: EC34
• S.H.I.S. Stem Clamp Diameter: 28.6-26tpi Quill
• Upper Stack Height: 26 mm
• Weight: 140 g