https://shop.fullspeedahead.com/en/type/headset-spares/no-11agy-3818
https://shop.fullspeedahead.com/en/files/index/download/id/bd8234aa2c74fd85de973444a468b88f77/
http://www.prestine.com.tw/tw/product/show.aspx?num=92&;kind=27&page=1
http://www.prestine.com.tw/upload/drawing/PT-1800B.pdf
https://www.necoparts.com/en/product/Semi-Integrated-Threadless-Headset/H369-3.html
入手性で決めればいいと思うよ。
