{"kind":"shaft","data":{"name":"ヤマハ SPEEDER NX for Yamaha M423u","url":"https://golfscale.jp/shaft/yamaha/speeder-nx-for-yamaha-m423u","slug":"SSYM024","brand":"ヤマハ","series":"SPEEDER NX for Yamaha M423u","shaft_type":"純正シャフト","material":"カーボン","model_count":1,"models":[{"shaft_id":"SJYM2022004","name":"SPEEDER NX for Yamaha M423u","release_year":"2022-10-21","specs":[{"flex":"R","weight_g":47.5,"kick_point":"中","length_inch":[40.75,40.25,39.75,39.25]},{"flex":"SR","weight_g":52.5,"kick_point":"中","length_inch":[40.75,40.25,39.75,39.25]},{"flex":"S","weight_g":62.5,"kick_point":"中","length_inch":[40.75,40.25,39.75,39.25]}]}],"sources":[{"url":"https://golf.yamaha.com/products/25inpres_drivestar_ut.html","checked_on":"2026-05-11"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-10-31T16:58:11+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/yamaha/speeder-nx-for-yamaha-m423u"}}