{"kind":"shaft","data":{"name":"フォーティーン FS-90iBK","url":"https://golfscale.jp/shaft/fourteen/fs-90ibk","slug":"SSFT014","brand":"フォーティーン","series":"FS-90iBK","shaft_type":"純正シャフト","material":"スチール","model_count":1,"models":[{"shaft_id":"SJFT2025001","name":"FS-90iBK","release_year":"2025-06-14","specs":[{"flex":"R","weight_g":89.0,"length_inch":[38.5,38.0,37.5,37.0,36.5,36.0]},{"flex":"S","weight_g":93.0,"length_inch":[38.5,38.0,37.5,37.0,36.5,36.0]}]}],"sources":[{"url":"https://www.fourteen.co.jp/","checked_on":"2026-05-11"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-01T05:29:21+00:00","license":{"text":"事実（数値・名称・住所など）は出典 URL つきで引用自由。記事本文・画像は要連絡。","url":"https://golfscale.jp/legal/credits"},"attribution":"出典: ゴルフスケール（golfscale.jp）","source_url":"https://golfscale.jp/shaft/fourteen/fs-90ibk"}}