{"product_id":"roller-weight-tuning-set-20x12-range-from-7g-to-18g-prima-brand","title":"Prima 20x12mm Roller Weight Tuning Kit - 36-Pieces 7g-18g","description":"\u003cp\u003eThe \u003cstrong\u003ePrima 20x12mm roller weight tuning kit\u003c\/strong\u003e gives you 36 color-coded rollers, 3 of each weight from 7g to 18g, to dial in your CVT transmission for your riding style, engine build and rider weight. Designed for Yamaha Zuma 125, Vino 125, and other applications using 20x12mm variator rollers, this kit lets you compare weight combinations without buying a separate set for every test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e36 rollers total:\u003c\/strong\u003e 3 of each weight from 7g to 18g in 1g increments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-coded weights:\u003c\/strong\u003e Organize your tuning combinations easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHalf-gram tuning:\u003c\/strong\u003e Mix two adjacent weights in equal quantities to achieve an intermediate average.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighter weights:\u003c\/strong\u003e Generally increase engine RPM for a given road speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavier weights:\u003c\/strong\u003e Generally lower engine RPM for a given road speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20x12mm size:\u003c\/strong\u003e Fits matching variator roller pockets.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTuning Guide\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart near your current setup:\u003c\/strong\u003e Compare changes against your existing roller weight, then adjust for acceleration, cruising RPM and your engine's power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixing weights:\u003c\/strong\u003e In a six-roller variator, alternate 3 rollers of one weight with 3 of another. For example, alternating 10g and 11g rollers gives an effective average of 10.5g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced installation:\u003c\/strong\u003e When mixing weights, position each three-roller group evenly at 120-degree intervals, alternating weights in every other pocket. Uneven placement can cause vibration and variator damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest each change:\u003c\/strong\u003e The best weight depends on your engine setup and riding conditions. Heavier rollers do not automatically produce a higher top speed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e36 roller weights total — 12 sets of 3\u003c\/li\u003e\n\u003cli\u003eWeight range: 7g to 18g\u003c\/li\u003e\n\u003cli\u003eRoller dimensions: 20mm x 12mm\u003c\/li\u003e\n\u003cli\u003eMix sets for half-gram increments\u003c\/li\u003e\n\u003cli\u003eColor-coded by weight\u003c\/li\u003e\n\u003cli\u003ePrecision-balanced for smooth variator operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Prima.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoller dimensions:\u003c\/strong\u003e 20mm diameter x 12mm width.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeights included:\u003c\/strong\u003e 7g, 8g, 9g, 10g, 11g, 12g, 13g, 14g, 15g, 16g, 17g and 18g, 3 of each.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal quantity:\u003c\/strong\u003e 36 rollers, 12 sets of 3.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 1400-1082.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZuma 125\u003c\/td\u003e\n\u003ctd\u003e20x12mm variator rollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eVino 125\u003c\/td\u003e\n\u003ctd\u003e20x12mm variator rollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch3\u003eUniversal Compatibility\u003c\/h3\u003e\u003cp\u003eThis kit is compatible with any scooter whose CVT variator uses \u003cstrong\u003e20mm diameter x 12mm wide roller weights\u003c\/strong\u003e, regardless of make or model. This includes stock and aftermarket variators designed for 20x12mm rollers.\u003c\/p\u003e\u003cp\u003eConfirm your variator's required roller dimensions before ordering. Choose roller weights within the included 7g–18g range to suit your engine setup, and install the correct number of rollers for your variator.\u003c\/p\u003e","brand":"Prima","offers":[{"title":"Default Title","offer_id":67964582953281,"sku":"1400-1082","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/1400-1082_8a1dac6b-9986-462d-aad1-d5708ab4efb5.jpg?v=1792793642","url":"https:\/\/azscooterparts.com\/products\/roller-weight-tuning-set-20x12-range-from-7g-to-18g-prima-brand","provider":"AZScooterParts","version":"1.0","type":"link"}