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Quantity
1
Hatta Japan's parts lineup focuses purely on headset and bottom bracket parts for Keirin pro riders.
The Swan Super Deluxe headset is used by 95% of professional Keirin track racers in Japan.
Specifications
• 1" threaded
• mirror-polished bearing races
• stack height: 34mm
• cup diameter: 30.2mm ISO; 30.0mm JIS
• crown race: 26.4mm ISO; 2