{"product_id":"fuji-spbot-sri","title":"Coupon eligible item: SRIXON Srixon ZXi also compatible. Sleeve-attached shaft Fujikura Fujikura SPEEDER BOOST Speeder Boost VTC","description":"\u003cp\u003eSPEEDER BOOST is a shaft born from the culmination of technology cultivated in Fujikura's SPEEDER series, designed to unlock a new realm of distance. Its main features are the fusion of VTC technology and a double-ick design. By intentionally reducing the bending rigidity of the grip and tip sections, the shaft progressively accelerates from the transition to the downswing and through impact.\u003c\/p\u003e\u003cp\u003eThe common drawbacks of soft shafts—a feeling of unreliability when swinging and a lack of satisfaction at impact—are resolved by VTC technology. It optimally controls shaft torsion and efficiently transmits stored energy to the ball.\u003c\/p\u003e\u003cp\u003eThis allows golfers who lack confidence in their swing speed to experience a clear flex, naturally improving both head speed and initial ball velocity. It's easier to time your swing, resulting in a stable trajectory and greater carry.\u003c\/p\u003e\u003cp\u003eIt caters to a wide range of golfers, from beginners and average players to intermediate and advanced golfers looking to increase distance. The \"two-stage acceleration\" sensation, unattainable with previous shafts, will elevate your shots to the next level.\u003c\/p\u003e\u003cp\u003e＜Specifications＞\u003c\/p\u003e\u003cp\u003eCommon Specifications\/Features\u003c\/p\u003e\u003cp\u003e・Product length: 46.0 inches\u003c\/p\u003e\u003cp\u003e・Tip diameter: 8.50mm\u003c\/p\u003e\u003cp\u003e・Bend point: Tip\/Butt (double kick)\u003c\/p\u003e\u003cp\u003e・Price: 49,500 yen (tax included)\u003c\/p\u003e\u003cp\u003e・Target: Those whose head speed is inconsistent \/ Those who want to hit easily\u003c\/p\u003e\u003cp\u003e▶ Head accelerates even with a light swing\u003c\/p\u003e\u003cp\u003e▶ SPEEDER-like acceleration + high initial velocity\u003c\/p\u003e\u003cp\u003e▶ Clearly softer frequency design than NX GOLD\u003c\/p\u003e\u003cp\u003eSPD BOOST 40 (Lightweight・Emphasis on ease of swinging)\u003c\/p\u003e\u003cp\u003eR Flex\u003c\/p\u003e\u003cp\u003e・Weight: 44.5g\u003c\/p\u003e\u003cp\u003e・Torque: 6.9\u003c\/p\u003e\u003cp\u003e・Butt diameter: 14.75mm\u003c\/p\u003e\u003cp\u003eS Flex\u003c\/p\u003e\u003cp\u003e・Weight: 45.5g\u003c\/p\u003e\u003cp\u003e・Torque: 6.9\u003c\/p\u003e\u003cp\u003e・Butt diameter: 14.80mm\u003c\/p\u003e\u003cp\u003e▶ Easy to time and naturally swing through, even for weaker players\u003c\/p\u003e\u003cp\u003eSPD BOOST 50 (All-rounder・Emphasis on balance)\u003c\/p\u003e\u003cp\u003eR Flex\u003c\/p\u003e\u003cp\u003e・Weight: 54.0g\u003c\/p\u003e\u003cp\u003e・Torque: 5.6\u003c\/p\u003e\u003cp\u003e・Butt diameter: 14.85mm\u003c\/p\u003e\u003cp\u003eS Flex\u003c\/p\u003e\u003cp\u003e・Weight: 55.0g\u003c\/p\u003e\u003cp\u003e・Torque: 5.6\u003c\/p\u003e\u003cp\u003e・Butt diameter: 14.90mm\u003c\/p\u003e\u003cp\u003e▶ If in doubt, choose this weight range. Excellent balance of stability and distance.\u003c\/p\u003e\u003cp\u003eSPD BOOST 60 (Solid feel・Lightweight with power)\u003c\/p\u003e\u003cp\u003eS Flex\u003c\/p\u003e\u003cp\u003e・Weight: 64.0g\u003c\/p\u003e\u003cp\u003e・Torque: 4.5\u003c\/p\u003e\u003cp\u003e・Butt diameter: 15.05mm\u003c\/p\u003e\u003cp\u003e▶ For those who want to prioritize direction without being overpowered, even with a lightweight shaft.\u003c\/p\u003e\u003cp\u003eFrequency (CPM) Reference Values\u003c\/p\u003e\u003cp\u003e※Measurement conditions: Head 200g \/ 45 inches (60-degree method) \/ Grip 50g\u003c\/p\u003e\u003cp\u003e・BOOST 40 R: 194 CPM (NX GOLD 232)\u003c\/p\u003e\u003cp\u003e・BOOST 40 S: 208 CPM (NX GOLD 252)\u003c\/p\u003e\u003cp\u003e・BOOST 50 R: 208 CPM (NX GOLD 237)\u003c\/p\u003e\u003cp\u003e・BOOST 50 S: 223 CPM (NX GOLD 257)\u003c\/p\u003e\u003cp\u003e・BOOST 60 S: 232 CPM (NX GOLD 261)\u003c\/p\u003e\u003cp\u003e▶ Clearly milder and easier to handle design than NX GOLD\u003c\/p\u003e\u003cp\u003e＜Key points＞\u003c\/p\u003e\u003cp\u003eFujikura\u003c\/p\u003e\u003cp\u003eFujikura\u003c\/p\u003e\u003cp\u003eSPEEDER BOOST\u003c\/p\u003e\u003cp\u003eSpeeder Boost\u003c\/p\u003e\u003cp\u003eSpeeder\u003c\/p\u003e\u003cp\u003eGolf shaft\u003c\/p\u003e\u003cp\u003eDriver shaft\u003c\/p\u003e\u003cp\u003eFairway wood shaft\u003c\/p\u003e\u003cp\u003eFW shaft\u003c\/p\u003e\u003cp\u003eCarbon shaft\u003c\/p\u003e\u003cp\u003eVTC Technology\u003c\/p\u003e\u003cp\u003eDouble Kick\u003c\/p\u003e\u003cp\u003eTwo-stage acceleration\u003c\/p\u003e\u003cp\u003eIncreased distance\u003c\/p\u003e\u003cp\u003eDistance performance\u003c\/p\u003e\u003cp\u003eImproved head speed\u003c\/p\u003e\u003cp\u003eIncreased initial velocity\u003c\/p\u003e\u003cp\u003eEmphasis on flex\u003c\/p\u003e\u003cp\u003eFlex return\u003c\/p\u003e\u003cp\u003eSwing through\u003c\/p\u003e\u003cp\u003eEasy to time\u003c\/p\u003e\u003cp\u003eStable trajectory\u003c\/p\u003e\u003cp\u003eHigh trajectory\u003c\/p\u003e\u003cp\u003eIncreased carry\u003c\/p\u003e\u003cp\u003eReduced misses\u003c\/p\u003e\u003cp\u003eBeginner golfer\u003c\/p\u003e\u003cp\u003eShaft for beginners\u003c\/p\u003e\u003cp\u003eAverage golfer\u003c\/p\u003e\u003cp\u003eIntermediate player\u003c\/p\u003e\u003cp\u003eAdvanced player\u003c\/p\u003e\u003cp\u003eGolf master\u003c\/p\u003e\u003cp\u003eScore improvement\u003c\/p\u003e\u003cp\u003eShaft replacement\u003c\/p\u003e\u003cp\u003eReshafting\u003c\/p\u003e\u003cp\u003eSold individually\u003c\/p\u003e\u003cp\u003eGolf equipment\u003c\/p\u003e\u003cp\u003eGolf parts\u003c\/p\u003e\u003cp\u003eWant to hit far\u003c\/p\u003e\u003cp\u003eHit easily\u003c\/p\u003e\u003cp\u003eLatest shaft\u003c\/p\u003e\u003cp\u003ePopular shaft\u003c\/p\u003e\u003cp\u003ePopular shaft\u003c\/p\u003e\n","brand":"アップサイドゴルフ本店","offers":[{"title":"50\/R \/ SPEEDER BOOST","offer_id":49933453459685,"sku":"10032001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"50\/S \/ SPEEDER BOOST","offer_id":49933453492453,"sku":"10042001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/S \/ SPEEDER BOOST","offer_id":49933453525221,"sku":"10022001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/R \/ SPEEDER BOOST","offer_id":49933453557989,"sku":"10012001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"60\/S \/ SPEEDER BOOST","offer_id":49933453590757,"sku":"10052001","price":39600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/0407\/0885\/files\/fuji-spbot-sri-1_80bf24c4-76fa-4cc2-967b-98dce0fc19c5.jpg?v=1784938966","url":"https:\/\/upsidegolf.co.jp\/en\/products\/fuji-spbot-sri","provider":"UpsideGolf","version":"1.0","type":"link"}