{"product_id":"dr-pulley-sliding-weights-21x17-vespa-gts-gtv-piaggio-1200-1113-11-g","title":"Dr. Pulley Sliding Weights 21x17: Vespa GTS, GTV \u0026 Piaggio","description":"\u003ch2\u003eNext-Gen CVT Performance: Dr. Pulley 21x17 Sliding Weights\u003c\/h2\u003e\u003cp\u003eElevate your riding experience with \u003cstrong\u003eDr. Pulley Sliding Roller Weights\u003c\/strong\u003e. Unlike standard round weights that roll, these patented sliders use a unique wedge shape to optimize your variator's range of motion. This design provides a lower starting gear for explosive take-offs and a higher final gear for increased top speeds and lower cruising RPMs.\u003c\/p\u003e\u003ch3\u003eThe Dr. Pulley Advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSliding Motion:\u003c\/strong\u003e Eliminates the \"flat-spotting\" common in traditional rollers, significantly extending the life of your transmission components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Tuning:\u003c\/strong\u003e Allows the variator to open further and close more tightly than stock rollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Lubricating Material:\u003c\/strong\u003e Made from a high-tech nylon compound that reduces friction and heat within the drive pulley.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eEngine Compatibility: Leader vs. Quasar\u003c\/h3\u003e\u003cp\u003eThe 21x17mm size is the standard specification for Piaggio's high-displacement engine families:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiaggio LEADER (200cc):\u003c\/strong\u003e Found in the Vespa GT 200 and Piaggio BV 200. While smaller 125\/150cc Leader engines often use 19x17mm, this 21x17mm size is the standard for the 200cc variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiaggio QUASAR (250cc - 300cc):\u003c\/strong\u003e This is the default roller size for the 244cc and 278cc engines used in the Vespa GTS 250 and GTS 300. Using Dr. Pulley Sliders in Quasar engines is the most effective way to reduce \"belt slap\" and improve highway cruising smoothness.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eModel Fitment\u003c\/h3\u003e\u003cp\u003eThese 21x17mm weights are a precision fit for the following scooters:\u003c\/p\u003e\u003ctable style=\"width: 100%; height: 117.563px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 8.92579%; height: 19.5938px;\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"width: 88.2171%; height: 19.5938px;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 8.92579%; height: 39.1875px;\"\u003e\u003cstrong\u003eVespa\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 88.2171%; height: 39.1875px;\"\u003eGTS 250, GTS 300, GTV 250, GTV 300, GT 200, GT 250, GT 300, Super, Super Sport, Sei Giorni\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 8.92579%; height: 39.1875px;\"\u003e\u003cstrong\u003ePiaggio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 88.2171%; height: 39.1875px;\"\u003eBV 200, BV 250, BV 300, MP3 250, MP3 300, X8 200\/250, X9 200\/250, Liberty 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 8.92579%; height: 19.5938px;\"\u003e\u003cstrong\u003eAprilia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 88.2171%; height: 19.5938px;\"\u003eAtlantic 200\/250, Scarabeo 200\/250, Sportcity 250\/300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 21mm (Diameter) x 17mm (Width)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Set of 6 Sliders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Weights:\u003c\/strong\u003e 9g, 9.5g, 10g, 10.5g, 11g, 11.5g, 12g, 12.5g, 13g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Dr. Pulley (Taiwan) - ISO 9001 Certified\u003c\/li\u003e\n\u003c\/ul\u003e\u003cblockquote\u003e\n\u003cstrong\u003eTuning Advice:\u003c\/strong\u003e For the best results, select a weight that is \u003cstrong\u003e10-15% lighter\u003c\/strong\u003e than your current stock roller weights (e.g., if you have 11g stock rollers, try 10g or 9.5g sliders) to achieve better acceleration without losing top speed.\u003c\/blockquote\u003e\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003eAbout Dr. Pulley:\u003c\/b\u003e \u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003eDr. Pulley is recognized as the global leader in aftermarket performance CVT components for a wide range of popular scooter brands, such as Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6\/QMB powered scooters. \u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003eEstablished in 1987, the company adheres to stringent quality standards and holds ISO 9001 certification.\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e \u003c\/p\u003e\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003eMade in Taiwan\u003c\/p\u003e","brand":"Dr. Pulley","offers":[{"title":"Default Title","offer_id":47671268638885,"sku":"1200-1113 11 G","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/2627\/1141\/files\/1200-1113_069184c1-85a7-4f70-9ec1-dd8ba5b3e884.jpg?v=1774953420","url":"https:\/\/classicscootersusa.com\/products\/dr-pulley-sliding-weights-21x17-vespa-gts-gtv-piaggio-1200-1113-11-g","provider":"Classic Scooters USA","version":"1.0","type":"link"}