TANGESEIKI PASSAGE DX JIS BK

A classic look with a reliable sealed design. 1-inch JIS-threaded headset.

TANGESEIKI, a Japanese parts manufacturer with many years of experience in bicycle headset components and bearings.

The PASSAGE DX is a headset compatible with the classic 1-inch threaded standard.

Its construction combines a lightweight and durable 6061-T6 aluminum body with heat-treated chromoly ball races. Furthermore, a triple-seal mechanism—with two seals at the top and one at the bottom—prevents rain and dust from entering.

The sleek black finish complements a wide range of bikes, from classic touring bikes to city bikes. Perfect for restoring vintage bikes or building a new one from scratch.

Understated in appearance, yet reliable in performance—that’s this headset.

[FEATURE]

• 1-inch JIS-compliant threaded headset
• Lightweight and durable 6061-T6 aluminum body
• Heat-treated chromoly ball races
• Triple-sealed construction with two seals on top and one on the bottom
• Black finish that complements classic bikes

[SPEC]

• Brand: TANGESEIKI
• Model: PASSAGE DX
• Standard: 1-inch JIS
• Type: Threaded
• Color: Black
• Body Material: 6061-T6 Aluminum
• Ball Race: Heat-treated Chromoly
• Weight: 121 g
• JAN: 4580087252296

[SIZE]

• Compatible steerer tube diameter: 1 inch
• Stack Height: 35.1 mm (Upper 23.0 mm / Lower 12.1 mm)
• JIS Standard: Head tube press-fit section 30.0 mm / Lower bearing shell inner diameter 27.0 mm

*Please note that dimensions differ from ITA standards; be sure to check the frame and fork specifications before installation.