{"product_id":"fuji-spbot-cob","title":"Coupon-eligible product: COBRA DARKSPEED sleeve with Fujikura SPEEDER BOOST shaft, Speeder Boost, VTC Double Kick","description":"\u003cp\u003eThe SPEEDER BOOST shaft was created by Fujikura, bringing together all the technology cultivated in the SPEEDER series, to open up new frontiers in distance. Its greatest feature is the fusion of VTC technology and a double-kick design. By intentionally reducing the bending rigidity of the grip and tip sections, the shaft progressively accelerates from the top of the backswing through the downswing and into impact.\u003c\/p\u003e\u003cp\u003eThe common issue of a soft shaft feeling unreliable during the swing or lacking power at impact is resolved by VTC technology. It optimally controls the shaft's torsion, efficiently transferring the energy from the shaft's snap-back to the ball.\u003c\/p\u003e\u003cp\u003eThis allows even golfers who are not confident in their swing speed to experience a clear flex, naturally increasing head speed and initial ball velocity. It's easier to time, leading to a stable trajectory and greater carry.\u003c\/p\u003e\u003cp\u003eIt caters to a wide range of golfers, from beginners and average players to advanced and expert golfers looking for increased distance. The \"two-stage acceleration sensation\" that was previously unattainable with other shafts will elevate your shots to the next level.\u003c\/p\u003e\u003cp\u003e\u003cspecs\u003e\u003c\/specs\u003e\u003c\/p\u003e\u003cp\u003eCommon Specs and 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 (tax included)\u003c\/p\u003e\u003cp\u003e・Target Audience: Those with inconsistent head speed \/ Those who want to hit the ball easily\u003c\/p\u003e\u003cp\u003e▶ The 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 swing)\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 with less power\u003c\/p\u003e\u003cp\u003eSPD BOOST 50 (All-purpose, 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 for 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\u003cpoints\u003e\u003c\/points\u003e\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\u003eDistance improvement\u003c\/p\u003e\u003cp\u003eDistance performance\u003c\/p\u003e\u003cp\u003eHead speed improvement\u003c\/p\u003e\u003cp\u003eInitial velocity increase\u003c\/p\u003e\u003cp\u003eEmphasis on flex\u003c\/p\u003e\u003cp\u003eSnap-back\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\u003eCarry increase\u003c\/p\u003e\u003cp\u003eReduced mishits\u003c\/p\u003e\u003cp\u003eGolf beginner\u003c\/p\u003e\u003cp\u003eBeginner shaft\u003c\/p\u003e\u003cp\u003eAverage golfer\u003c\/p\u003e\u003cp\u003eIntermediate player\u003c\/p\u003e\u003cp\u003eAdvanced player\u003c\/p\u003e\u003cp\u003eExpert golfer\u003c\/p\u003e\u003cp\u003eScore improvement\u003c\/p\u003e\u003cp\u003eShaft replacement\u003c\/p\u003e\u003cp\u003eReshaft\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 further\u003c\/p\u003e\u003cp\u003eEasy distance\u003c\/p\u003e\u003cp\u003eLatest shaft\u003c\/p\u003e\u003cp\u003eHot shaft\u003c\/p\u003e\u003cp\u003ePopular shaft\u003c\/p\u003e","brand":"アップサイドゴルフ本店","offers":[{"title":"50\/R \/ SPEEDER BOOST","offer_id":49933493928165,"sku":"10032001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"50\/S \/ SPEEDER BOOST","offer_id":49933493960933,"sku":"10042001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/S \/ SPEEDER BOOST","offer_id":49933493993701,"sku":"10022001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/R \/ SPEEDER BOOST","offer_id":49933494026469,"sku":"10012001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"60\/S \/ SPEEDER BOOST","offer_id":49933494059237,"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-cob-1_dad25398-6379-4284-adf0-5ff03430c442.jpg?v=1784939510","url":"https:\/\/upsidegolf.co.jp\/en\/products\/fuji-spbot-cob","provider":"UpsideGolf","version":"1.0","type":"link"}