{"kind":"shaft","data":{"name":"ヤマハ SPEEDER NX for Yamaha M423i","url":"https://golfscale.jp/shaft/yamaha/speeder-nx-for-yamaha-m423i","slug":"SSYM023","brand":"ヤマハ","series":"SPEEDER NX for Yamaha M423i","shaft_type":"純正シャフト","material":"カーボン","model_count":1,"models":[{"shaft_id":"SJYM2022003","name":"SPEEDER NX for Yamaha M423i","release_year":"2022-10-21","specs":[{"flex":"R","weight_g":[46.0,47.5,52.0,52.0,52.0],"kick_point":"中","length_inch":[39.0,38.5,38.0,37.5,37.0,36.5,36.0,36.0,35.75]},{"flex":"SR","weight_g":[47.5,49.0,53.5,53.5,53.5],"kick_point":"中","length_inch":[39.0,38.5,38.0,37.5,37.0,36.5,36.0,36.0,35.75]}]}],"sources":[{"url":"https://golf.yamaha.com/products/25inpres_drivestar_ir_type-s.html","checked_on":"2026-05-11"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-01T07:57:51+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-m423i"}}