{"product_id":"fuji-spbot-prg","title":"Coupon-eligible item: PRGR Pro Gear Sleeve Shaft Fujikura Fujikura SPEEDER BOOST Speeder Boost VTC Double Kick Two-Stage Acceleration","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 driving distance. Its greatest features are the fusion of VTC Technology and a double-kick design. By intentionally reducing the bending stiffness at 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 feeling of unreliability in the swing and unsatisfying impact that can occur with softer shafts is eliminated by VTC Technology. It optimally controls the shaft's torsion, efficiently transferring the energy from the shaft's rebound to the ball.\u003c\/p\u003e\u003cp\u003eThis allows even golfers who are not confident in their swing speed to clearly feel the flex, naturally improving their head speed and initial ball velocity. It makes timing easier, achieving stable ball flight and greater carry.\u003c\/p\u003e\u003cp\u003eIt is suitable for a wide range of golfers, from beginners to average players, and even intermediate to advanced players looking to increase their driving distance. The \"two-stage acceleration\" feeling, which was unattainable with previous shafts, will elevate your shots to the next level.\u003c\/p\u003e\u003cp\u003e\u003cspecs\u003e\u003c\/specs\u003e\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 (including tax)\u003c\/p\u003e\u003cp\u003e・Target Audience: Those with inconsistent head speed \/ Those who want to hit effortlessly\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 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 even for weaker players, allowing for a natural finish to the swing\u003c\/p\u003e\u003cp\u003eSPD BOOST 50 (Universal, 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 you're unsure, choose this weight range. Excellent balance of stability and distance.\u003c\/p\u003e\u003cp\u003eSPD BOOST 60 (Solid feel, lightweight for strong hitters)\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: 200g head \/ 45 inches (60-degree method) \/ 50g grip\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\u003eIncreased Distance\u003c\/p\u003e\u003cp\u003eDistance Performance\u003c\/p\u003e\u003cp\u003eImproved Head Speed\u003c\/p\u003e\u003cp\u003eIncreased Ball Speed\u003c\/p\u003e\u003cp\u003eEmphasis on Flex\u003c\/p\u003e\u003cp\u003eFlex Rebound\u003c\/p\u003e\u003cp\u003eSmooth Swing Through\u003c\/p\u003e\u003cp\u003eEasy to Time\u003c\/p\u003e\u003cp\u003eStable Ball Flight\u003c\/p\u003e\u003cp\u003eHigh Trajectory\u003c\/p\u003e\u003cp\u003eIncreased Carry\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\u003c\/p\u003e\u003cp\u003eAdvanced\u003c\/p\u003e\u003cp\u003eGolf Expert\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\u003eHit effortlessly\u003c\/p\u003e\u003cp\u003eLatest Shaft\u003c\/p\u003e\u003cp\u003eTrending 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":49933466435813,"sku":"10032001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"50\/S \/ SPEEDER BOOST","offer_id":49933466468581,"sku":"10042001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/S \/ SPEEDER BOOST","offer_id":49933466501349,"sku":"10022001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"40\/R \/ SPEEDER BOOST","offer_id":49933466534117,"sku":"10012001","price":39600.0,"currency_code":"JPY","in_stock":true},{"title":"60\/S \/ SPEEDER BOOST","offer_id":49933466566885,"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-prg-1_9305e6e6-9a6c-4109-aaae-5ea8ae47efa9.jpg?v=1784939146","url":"https:\/\/upsidegolf.co.jp\/en\/products\/fuji-spbot-prg","provider":"UpsideGolf","version":"1.0","type":"link"}