{"kind":"shaft","data":{"name":"グラインドワークス Majin Shaft","url":"https://golfscale.jp/shaft/grindworks/majin-shaft","slug":"SSGW003","brand":"グラインドワークス","series":"Majin Shaft","shaft_type":"純正シャフト","material":"カーボン","model_count":1,"models":[{"shaft_id":"SJGW2020001","name":"Majin Shaft","release_year":"","specs":[{"flex":"S","weight_g":52,"torque":3,"kick_point":"中元","length_inch":45.0,"frequency_cpm":260},{"flex":"SR","weight_g":51,"torque":3,"kick_point":"中元","length_inch":45.0,"frequency_cpm":250},{"flex":"R","weight_g":50,"torque":3,"kick_point":"中元","length_inch":45.0,"frequency_cpm":235}]}],"sources":[{"url":"https://grindworks-online.com/products/majin-driver-1","checked_on":"2026-11-06"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-07T19:01:03+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/grindworks/majin-shaft"}}