{"product_id":"roller-weight-set-prima-20-x-12-mm-yamaha-roll20x12","title":"Prima Roller Weight Set - 20x12mm for Yamaha Zuma \u0026 Vino 125","description":"\u003cp\u003eDial in your scooter's CVT performance with Prima 20x12mm Precision Roller Weights. The weight of your rollers determines when your variator \"shifts\" — swapping them lets you prioritize off-the-line snap or highway cruising efficiency. Manufactured to strict tolerances for balanced rotation and smooth variator movement. Available in 9g through 15g; 6 weights per set. SKU: ROLL20X12.\u003c\/p\u003e\u003ch2\u003eWeight Selection Guide\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight weights (9g–10g):\u003c\/strong\u003e Best for quick acceleration, stop-and-go city riding, and improved hill climbing. May reduce top-end speed slightly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy weights (12g–15g):\u003c\/strong\u003e Ideal for long-distance commuting and maximizing top-end speed by keeping engine RPMs lower at high velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable composite shell:\u003c\/strong\u003e High-heat resistant outer shell reduces flat-spotting and extends variator service intervals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTuning tip:\u003c\/strong\u003e Riders over 200 lbs or with a stock motor generally see the best results with lighter weights. If you have installed a big bore kit (BBK), heavier weights are often required to keep the engine from over-revving past its new power band.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eDirect fit for 125cc+ Yamaha and European scooter platforms. Most 125cc models use 6 rollers per set.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eCompatible Models\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 (all years), Vino 125, SMAX 155, Majesty 125, BWS 125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinhai \/ BMS\u003c\/td\u003e\n\u003ctd\u003eLinhai 250\/260\/300, BMS 250, various 250cc touring scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimensions: 20mm diameter x 12mm width\u003c\/li\u003e\n\u003cli\u003eQuantity: 6 weights per set\u003c\/li\u003e\n\u003cli\u003eAvailable weights: 9g, 10g, 11g, 12g, 13g, 14g, 15g\u003c\/li\u003e\n\u003cli\u003eFitment type: OEM replacement \/ performance upgrade\u003c\/li\u003e\n\u003cli\u003eSKU: ROLL20X12\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\"\u003eCalifornia Prop 65 Warning: www.p65warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"Prima","offers":[{"title":"Default Title","offer_id":48111789080763,"sku":"ROLL20X12 10.0 G","price":11.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/ROLL20X12_80313cf5-ffc1-46f8-9739-bc18ce5b82a5.jpg?v=1784294954","url":"https:\/\/thriftyscooters.com\/products\/roller-weight-set-prima-20-x-12-mm-yamaha-roll20x12","provider":"Thrifty Scooters","version":"1.0","type":"link"}