{"kind":"shaft","data":{"name":"ヨネックス RK-03GT","url":"https://golfscale.jp/shaft/yonex/rk-03gt","slug":"SSYN007","brand":"ヨネックス","series":"RK-03GT","shaft_type":"純正シャフト","material":"カーボン","model_count":4,"models":[{"shaft_id":"SJYN2022001","name":"RK-03GT driver","release_year":"2022-03-11","specs":[{"flex":"R","weight_g":45.0,"torque":4.9,"kick_point":"先中","length_inch":45.75},{"flex":"SR","weight_g":52.0,"torque":3.7,"kick_point":"先中","length_inch":45.75},{"flex":"S","weight_g":57.0,"torque":3.0,"kick_point":"先中","length_inch":45.75}]},{"shaft_id":"SJYN2022002","name":"RK-03GT fw","release_year":"2022-03-11","specs":[{"flex":"R","weight_g":[51.0,50.0,49.0],"torque":4.5,"kick_point":"先中","length_inch":[43.25,42.75,42.25]},{"flex":"SR","weight_g":[58.0,57.0,56.0],"torque":3.9,"kick_point":"先中","length_inch":[43.25,42.75,42.25]},{"flex":"S","weight_g":[63.0,62.0],"torque":3.4,"kick_point":"先中","length_inch":[43.25,42.75]}]},{"shaft_id":"SJYN2022003","name":"RK-03GT iron","release_year":"2022-03-11","specs":[{"flex":"R","kick_point":"先中","length_inch":[39.25,38.5,38.0,37.5,37.0,36.5,35.75,36.0,35.5]},{"flex":"SR","kick_point":"先中","length_inch":[39.25,38.5,38.0,37.5,37.0,36.5,35.75,36.0,35.5]}]},{"shaft_id":"SJYN2022004","name":"RK-03GT utility","release_year":"2022-03-11","specs":[{"flex":"R","weight_g":[52.0,51.0,50.0],"torque":3.6,"kick_point":"先中","length_inch":[40.5,40.0,39.5]},{"flex":"SR","weight_g":[59.0,58.0,57.0],"torque":3.2,"kick_point":"先中","length_inch":[40.5,40.0,39.5]},{"flex":"S","weight_g":[64.0,63.0,62.0],"torque":2.8,"kick_point":"先中","length_inch":[40.5,40.0,39.5]}]}],"sources":[{"url":"https://www.yonex.co.jp/golf/clubs/ezone-gt-425-driver.html","checked_on":"2026-05-11"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-01T03:15:56+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-03gt"}}