{"product_id":"dr-pulley-16x13-sliding-roller-weights-169-217","title":"Dr. Pulley 16x13 Sliding Roller Weights","description":"\u003ch2\u003eRevolutionary Performance: Dr. Pulley 16x13 Sliding Roller Weights\u003c\/h2\u003e\u003cp\u003eEliminate flat spots and unlock a broader power band with \u003cstrong\u003eDr. Pulley Sliding Roller Weights\u003c\/strong\u003e. Traditional round weights rely on a rolling motion that can lead to uneven wear and \"flat-spotting,\" which kills your acceleration. Dr. Pulley’s patented sliding design allows the weights to move further out in the variator ramps, effectively extending your gear ratio. This results in faster take-offs and a higher top-end speed—all while lasting significantly longer than standard nylon rollers.\u003c\/p\u003e\u003ch3\u003eThe Sliding Advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Sliding Movement:\u003c\/strong\u003e Unlike round weights, these \"sliders\" shift the gear ratio more efficiently, providing a smoother transition through the power band without abnormal wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Gear Ratio:\u003c\/strong\u003e The unique shape allows the variator to open further and close more tightly, giving you better low-end \"snap\" and increased top-end velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU.S. Patent Protection:\u003c\/strong\u003e Features the award-winning design (Patent #7,276,004) trusted by professional tuners and racing teams worldwide.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThese 16x13mm weights are the standard tuning size for most \u003cstrong\u003e50cc 4-Stroke and 2-Stroke\u003c\/strong\u003e scooter engines:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eBrand \/ Engine\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eCompatible Model Series\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRuckus 50 (NPS50), Metropolitan (CHF50), Elite 50, Dio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e139QMB \/ GY6 50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaoTao, Wolf, Icebear, Bintelli, and other 50cc 4-Strokes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGenuine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuddy 50, Roughhouse 50, Brio 50, Urbano 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKymco\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgility 50, People 50, Super 8 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSYM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMio 50, DD50, Fiddle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 16mm x 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Set of 6 Weights\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Range:\u003c\/strong\u003e Available from 3g to 11g (including half-grams)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Self-Lubricating SL-Compound \/ Black Pearl\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eTuning Note:\u003c\/strong\u003e Weight selection is key!  Lighter weights (3g-5g) provide faster acceleration and better hill climbing, while heavier weights (7g-10g) lower your RPMs for better fuel economy and top speed.\u003c\/blockquote\u003e\u003cblockquote\u003e\n\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e Because these are directional, ensure the \"Dr. Pulley\" logo faces the correct direction inside the variator. \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Pair these with an \u003cstrong\u003e\u003ca href=\"https:\/\/www.scooterworks.com\"\u003eNCY Performance Variator\u003c\/a\u003e\u003c\/strong\u003e for the ultimate 50cc transmission setup!\u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 169-217 \u003cbr\u003e\u003cstrong\u003eVendor:\u003c\/strong\u003e Dr. Pulley\u003c\/p\u003e\u003cp\u003eHonda Dio, Honda Elite 50, Honda Ruckus 50 (NPS50), QMB139 50cc\/49cc\u003c\/p\u003e","brand":"Dr. Pulley","offers":[{"title":"3G","offer_id":49986419589400,"sku":"169-217   3G","price":21.0,"currency_code":"USD","in_stock":false},{"title":"10.5G","offer_id":49986425946392,"sku":"169-217   10.5G","price":21.0,"currency_code":"USD","in_stock":false},{"title":"3.5G","offer_id":49986425979160,"sku":"169-217   3.5G","price":21.0,"currency_code":"USD","in_stock":false},{"title":"11G","offer_id":49986434466072,"sku":"169-217   11G","price":21.0,"currency_code":"USD","in_stock":false},{"title":"10G","offer_id":49986438562072,"sku":"169-217   10G","price":21.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/169-217_ddd4a148-636f-4950-8e54-c2aec4ba2d44.webp?v=1750706128","url":"https:\/\/www.scooterworks.com\/products\/dr-pulley-16x13-sliding-roller-weights-169-217","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}