Ritchey Logic-E 1.5" Semi Integrated ZS Upper Headset

The new Ritchey Logic-E 1.5" Semi-Integrated ZS Upper Headset is a solution designed to allow cables and wires to easily integrate with internal frame routing when using any standard stem – no special stem necessary. Cables and wires enter the headtube through channels on the headset upper, passing through the space between the fork steerer and headtube before continuing their route through the frame.

Technical specifications

• Material: Nylon + glass fiber.
• Stack Height: 22.2mm.
• Headtube ID: 55 or 56mm.
• Headtube OD: 61 or 62mm.
• S.H.I.S.: ZS55/28.6 (1.5”) - ZS56/28.6 (1.5”).
• Bearings: 51.80/40mm 45°/45° - sealed cartridge (ACB).
• Compression cap NOT included.