{"kind":"shaft","data":{"name":"USTマミヤ ATTAS FF IRON","url":"https://golfscale.jp/shaft/ustmamiya/attas-ff-iron","slug":"SSUM022","brand":"USTマミヤ","series":"ATTAS FF IRON","shaft_type":"カスタムシャフト","material":"カーボン","model_count":4,"models":[{"shaft_id":"SOUM083","name":"ATTAS FF IRON 65","list_price_jpy":9900,"specs":[{"flex":"n/a","weight_g":[55,57,59,61,63,65,67,69,71,73,75],"torque":[3.6,3.5,3.5,3.4,3.4,3.3,3.2,3.2,3.1,3.0,2.8],"length_inch":[40,39.5,39,38.5,38,37.5,37,36.5,36,35.5,35]}]},{"shaft_id":"SOUM084","name":"FF IRON 75","list_price_jpy":9900,"specs":[{"flex":"n/a","weight_g":[65,67,69,71,73,75,77,79,81,83,85],"torque":[3.5,3.5,3.4,3.4,3.3,3.2,3.2,3.1,2.9,2.8,2.7],"length_inch":[40,39.5,39,38.5,38,37.5,37,36.5,36,35.5,35]}]},{"shaft_id":"SOUM085","name":"ATTAS FF IRON 85","list_price_jpy":9900,"specs":[{"flex":"n/a","weight_g":[75,77,79,81,83,85,87,89,91,93,95],"torque":[3.2,3.1,3.1,3.0,2.9,2.7,2.5,2.4,2.2,2.1,2.0],"length_inch":[40,39.5,39,38.5,38,37.5,37,36.5,36,35.5,35]}]},{"shaft_id":"SOUM086","name":"ATTAS FF IRON 95","list_price_jpy":9900,"specs":[{"flex":"n/a","weight_g":[85,87,89,91,93,95,97,99,101,103,105],"torque":[2.9,2.9,2.8,2.8,2.6,2.5,2.4,2.3,2.2,2.1,1.9],"length_inch":[40,39.5,39,38.5,38,37.5,37,36.5,36,35.5,35]}]}],"sources":[{"url":"https://ustmamiya.co.jp/product/attas-ff-iron/","checked_on":"2026-05-17"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-01T22:29:41+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/ustmamiya/attas-ff-iron"}}