Product Description:
This listing is for a classic TANGE-Seiki OV286 Threaded Headset (1-1/8" Oversize), model AP-4. This headset uses the standard 28.6x26mm sizing and is compatible with most vintage frames and forks, making it an excellent original equipment manufacturer (OEM) part for restoring or upgrading older bicycles.
Specifications:
Brand: TANGE-Seiki
Model: OV286
Part Number: AP-4
Type: Threaded Headset
Steerer Tube Size: 1-1/8 inch (Oversize)
Headset Outer/Inner Diameter: 28.6mm x 26mm
Color: Classic Black
Features & Benefits:
Classic Quality: TANGE-Seiki is a renowned Japanese brand for classic bicycle components, known for solid manufacturing and high durability.
Precise Compatibility: Designed specifically for vintage frames, it features standard sizing for a high degree of installation fit.
Balance of Light Weight and Strength: The main body is made of steel with precision machining, offering a good balance of rigidity and weight control.
Ideal for Vintage Restoration: A perfect choice for collectors and vintage bicycle enthusiasts restoring classic bikes.
Compatibility Note:
Please confirm that your frame's head tube inner diameter is 28.6mm and the fork steerer tube is 1-1/8" threaded.
It is recommended to use appropriate tools and have the installation performed by a professional mechanic to ensure correct thread engagement and smooth adjustment.
Item Condition:
This is a vintage New Old Stock (NOS) part and may show signs of storage (such as slight packaging aging or minor surface scratches), which do not affect functionality.
All components are complete. Threads are intact, and rotating parts operate normally.
Important Notes:
Although this vintage part has been checked and is fully functional, cleaning and lubrication before installation are recommended.
Due to variations in bicycle models and years, please double-check the size and frame compatibility before purchasing.


