{"kind":"shaft","data":{"name":"ヨネックス RK-04GT","url":"https://golfscale.jp/shaft/yonex/rk-04gt","slug":"SSYN009","brand":"ヨネックス","series":"RK-04GT","shaft_type":"純正シャフト","material":"カーボン","model_count":4,"models":[{"shaft_id":"SJYN2024001","name":"RK-04GT driver","release_year":"2024-04","specs":[{"flex":"R","weight_g":46.0,"torque":4.7,"kick_point":"中元","length_inch":45.5},{"flex":"SR","weight_g":53.0,"torque":3.7,"kick_point":"中元","length_inch":45.5},{"flex":"S","weight_g":58.0,"torque":3.0,"kick_point":"中元","length_inch":45.5}]},{"shaft_id":"SJYN2024002","name":"RK-04GT fw","release_year":"2024-04","specs":[{"flex":"R","weight_g":[50.0,49.0,48.0],"torque":4.8,"kick_point":"中元","length_inch":[43.25,42.75,42.25]},{"flex":"SR","weight_g":[57.0,56.0,55.0],"torque":4.0,"kick_point":"中元","length_inch":[43.25,42.75,42.25]},{"flex":"S","weight_g":63.0,"torque":3.5,"kick_point":"中元","length_inch":[43.25,42.75]}]},{"shaft_id":"SJYN2024003","name":"RK-04GT iron","release_year":"2024-04","specs":[{"flex":"R","kick_point":"中元","length_inch":[39.25,38.5,38.0,37.5,37.0,36.5,35.75,36.0,35.5]},{"flex":"SR","kick_point":"中元","length_inch":[39.25,38.5,38.0,37.5,37.0,36.5,35.75,36.0,35.5]}]},{"shaft_id":"SJYN2024004","name":"RK-04GT utility","release_year":"2024-04","specs":[{"flex":"R","weight_g":[52.0,51.0,50.0,49.0],"torque":3.5,"kick_point":"中元","length_inch":[40.5,40.0,39.5,39.0]},{"flex":"SR","weight_g":[59.0,58.0,57.0,56.0],"torque":3.0,"kick_point":"中元","length_inch":[40.5,40.0,39.5,39.0]},{"flex":"S","weight_g":[64.0,63.0,62.0,61.0],"torque":2.5,"kick_point":"中元","length_inch":[40.5,40.0,39.5,39.0]}]}],"sources":[{"url":"https://www.yonex.co.jp/golf/","checked_on":"2026-05-11"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-10-31T23:20:27+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/yonex/rk-04gt"}}