{"product_id":"prima-roller-weight-set-16x13-mm-6-pcs-roll16x13","title":"Prima 16x13mm CVT Roller Weights - 139QMB, Ruckus, Buddy 50","description":"\u003ch2\u003ePrima Roller Weight Set (16x13mm) – Precision CVT Tuning\u003c\/h2\u003e\u003cp\u003eFine-tune your scooter's performance with the \u003cstrong\u003ePrima 16x13mm Roller Weight Set\u003c\/strong\u003e. Whether you are looking for quicker off-the-line acceleration or a higher top-end speed, changing your roller weights is the most cost-effective way to customize your ride's power delivery.\u003c\/p\u003e\u003cp\u003ePrima weights are manufactured to exacting tolerances to ensure smooth shifting and long-term durability in high-heat CVT environments.\u003c\/p\u003e\u003ch3\u003eCVT Tuning Guide\u003c\/h3\u003e\u003cp\u003eChoosing the right weight depends on your riding goals and body weight:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighter Weights (3g - 5g):\u003c\/strong\u003e Ideal for quick \"stop-and-go\" acceleration, better hill climbing, and heavier riders. \u003cem\u003eNote: May slightly decrease top-end speed.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMid-Range Weights (6g - 8g):\u003c\/strong\u003e Best for balanced daily commuting. These are typically close to the \"stock\" feel for most 50cc scooters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavier Weights (9g - 11g):\u003c\/strong\u003e Best for increasing top-end speed on long flat roads and for lighter riders. \u003cem\u003eNote: Acceleration will be more gradual.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 6 Weights per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e For use in standard variators requiring 16x13mm rollers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eDetailed Model Fitment\u003c\/h3\u003e\u003cp\u003eThis 16x13mm set is a direct replacement for \u003cstrong\u003e49cc - 80cc 4-Stroke (139QMB \/ GY6 50)\u003c\/strong\u003e engines, as well as premium 50cc models from Genuine, Honda, and Yamaha.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGenuine Scooter Co. (2-Stroke):\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuddy 50 \/ International:\u003c\/strong\u003e (Stock: 7.5g - 8.5g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoughHouse 50 \/ Sport \/ 50 Titanium:\u003c\/strong\u003e (Stock: 7.5g - 8.5g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRattler 50:\u003c\/strong\u003e (Stock: 11.5g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Cat 50:\u003c\/strong\u003e (Stock: 7.5g - 8.5g)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHonda \u0026amp; Yamaha (4-Stroke GET\/Liquid Cooled):\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda Ruckus (NPS50):\u003c\/strong\u003e All Years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda Metropolitan (CHF50):\u003c\/strong\u003e 2002–2012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha C3 (XF50):\u003c\/strong\u003e 2007–2011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha Vino 50:\u003c\/strong\u003e 4-Stroke Models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha Zuma 50F \/ 50FX:\u003c\/strong\u003e 4-Stroke Models (2012+)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChinese \u0026amp; Taiwanese 50cc (GY6 50 \/ 139QMB):\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChicago Scooter Co:\u003c\/strong\u003e Go. 50, Go. Max 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWolf Brand Scooters:\u003c\/strong\u003e RX-50, Islander, Lucky, Blaze, MOTO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaoTao \/ Tao Motors:\u003c\/strong\u003e ATM50-A1, Pony, VIP, Thunder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLance \/ SYM:\u003c\/strong\u003e Cali Classic 50, PCH 50, Cabo 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKymco:\u003c\/strong\u003e Agility 50, Super 8 50 (4-Stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBintelli \/ Ice Bear:\u003c\/strong\u003e Breeze, Havoc, Maddog 50, PMZ50\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eEngine Code Compatibility\u003c\/h3\u003e\u003cp\u003eDon't see your model listed?  If your engine tag contains any of the following codes, these 16x13mm weights are compatible\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e139QMB-based 50cc \/ 80cc engines with the following engine codes:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable width=\"463\" height=\"100\" style=\"width: 87.0908%;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139QMA\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e1P39QMA-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eYN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eJJ1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e139FMA-2\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eBD1P39QMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eBN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003e147QMD\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eOther QMA models\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%;\"\u003eOther QMB models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDon't see your engine listed? If the engine code includes \"QM\" or \"FM\", this product is compatible with your vehicle.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e","brand":"Prima","offers":[{"title":"3.0 G","offer_id":46758367559960,"sku":"ROLL16X13 3.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"3.5 G","offer_id":46758367592728,"sku":"ROLL16X13 3.5 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"4.0 G","offer_id":46758367625496,"sku":"ROLL16X13 4.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"4.5 G","offer_id":46758367658264,"sku":"ROLL16X13 4.5 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"5.0 G","offer_id":46758367691032,"sku":"ROLL16X13 5.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"5.5 G","offer_id":46758367723800,"sku":"ROLL16X13 5.5 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"6.0 G","offer_id":46758367756568,"sku":"ROLL16X13 6.0 G","price":11.0,"currency_code":"USD","in_stock":false},{"title":"6.5 G","offer_id":46758367789336,"sku":"ROLL16X13 6.5 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"7.0 G","offer_id":46758367822104,"sku":"ROLL16X13 7.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"7.5 G","offer_id":46758367985944,"sku":"ROLL16X13 7.5 G","price":11.0,"currency_code":"USD","in_stock":false},{"title":"8.0 G","offer_id":46758367854872,"sku":"ROLL16X13 8.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"9.0 G","offer_id":46758367887640,"sku":"ROLL16X13 9.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"10.0 G","offer_id":46758367920408,"sku":"ROLL16X13 10.0 G","price":11.0,"currency_code":"USD","in_stock":true},{"title":"11.0 G","offer_id":46758367953176,"sku":"ROLL16X13 11.0 G","price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/products\/roll16x13_37102171-392f-4d3d-b6d9-648ad3d1bfaf.jpg?v=1695293229","url":"https:\/\/www.scooterworks.com\/products\/prima-roller-weight-set-16x13-mm-6-pcs-roll16x13","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}