{"kind":"shaft","data":{"name":"ジオテック PROTOTYPE RFEVO W4","url":"https://golfscale.jp/shaft/geotech/prototype-rfevo-w4","slug":"SSGH051","brand":"ジオテック","series":"PROTOTYPE RFEVO W4","shaft_type":"純正シャフト","material":"カーボン","model_count":1,"models":[{"shaft_id":"SJGH2019001","name":"PROTOTYPE RFEVO W4","release_year":"2019-09-25","specs":[{"flex":"L","weight_g":49,"torque":5.9,"kick_point":"先","length_inch":46,"frequency_cpm":205},{"flex":"A","weight_g":50,"torque":5.4,"kick_point":"先","length_inch":46,"frequency_cpm":215},{"flex":"R","weight_g":51,"torque":5.4,"kick_point":"先","length_inch":46,"frequency_cpm":225}]}],"sources":[{"url":"https://www.geotechgolf.com/products/detail/37504","checked_on":"2019-09-25"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-07T23:11:22+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/geotech/prototype-rfevo-w4"}}