High-end made-in-Japan sealed bearing alloy Tange Seiki headset, NJS approved*.

• NJS approved model
• Lightweight and durable with strong aluminium construction
• Heat-treated Cr-Mo ball races
• Super Stone polish on every ball races
• Drilled non-structural areas for reduced weight
• Fully sealed mechanism with caged loose ball bearings

For Road 1 inch 30.2mm headtubes

DOES NOT FIT old school BMX frames with exception**

30.2mm headtube size for Road Style Bikes (** JMC, RRS and Torker reissue frames).

* NJS, or Nihon Jitensha Shinkōkai, was the Japanese Kerin race sanctioning body. Whilst its functions have now been taken over by JKA Foundation the accreditation process remains to ensure compatibility of equipment in Kerin races. The remit of the NJS to ensure products are compliant with track racing meant that equipment is typically of very high quality and interoperable amongst other NJS stuff,.