{"product_id":"gy6s-1400-1069-prima-roller-weight-tuning-kit-16x13-3gm-14gm-for-50cc-100cc-qmb139-gy6","title":"PRIMA ROLLER WEIGHT TUNING KIT (16x13) *3gm - 14gm* FOR 50cc - 100cc QMB139 GY6","description":"\u003cstrong\u003ePrima Variator Roller Weight Tuning Kit (16x13mm) – 36 Piece Roller Set (3g–14g) Made in Taiwan\u003c\/strong\u003e \u003cp\u003eTake the guesswork out of CVT tuning with the \u003cstrong\u003ePrima Variator Roller Weight Tuning Kit\u003c\/strong\u003e. Designed for scooters using \u003cstrong\u003e16x13mm variator rollers\u003c\/strong\u003e, this comprehensive tuning kit lets you quickly determine the ideal roller weight for your riding style, engine modifications, and performance goals.\u003c\/p\u003e \u003cp\u003eWhether you're chasing quicker acceleration, stronger hill-climbing power, improved fuel economy, or higher top speed, this kit gives you the flexibility to experiment with multiple weight combinations before purchasing a permanent roller set.\u003c\/p\u003e \u003cp\u003eUnlike buying individual roller sets, the Prima Tuning Kit includes a wide range of weights organized in a durable storage case, making CVT tuning faster, easier, and more affordable.\u003c\/p\u003e Why Roller Weights Matter \u003cp\u003eVariator roller weights control how quickly your CVT transmission shifts.\u003c\/p\u003e \u003ch3\u003eLighter Rollers\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIncrease engine RPM\u003c\/li\u003e \u003cli\u003eFaster acceleration\u003c\/li\u003e \u003cli\u003eStronger low-end power\u003c\/li\u003e \u003cli\u003eBetter hill climbing\u003c\/li\u003e \u003cli\u003eMore responsive throttle\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eHeavier Rollers\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eLower cruising RPM\u003c\/li\u003e \u003cli\u003eSmoother engagement\u003c\/li\u003e \u003cli\u003eImproved fuel economy\u003c\/li\u003e \u003cli\u003eIncreased top-speed potential (if engine power allows)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFinding the correct weight keeps your engine operating in its optimal power band for maximum performance.\u003c\/p\u003e Features \u003cul\u003e \u003cli\u003eComplete 36-piece roller weight tuning kit\u003c\/li\u003e \u003cli\u003eWide tuning range from \u003cstrong\u003e3g to 14g\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eStandard \u003cstrong\u003e16x13mm\u003c\/strong\u003e roller size\u003c\/li\u003e \u003cli\u003eHigh-quality composite construction\u003c\/li\u003e \u003cli\u003eHeat-resistant, low-friction material\u003c\/li\u003e \u003cli\u003eSmooth CVT operation during testing\u003c\/li\u003e \u003cli\u003eDurable divided storage case keeps weights organized\u003c\/li\u003e \u003cli\u003ePerfect for diagnosing CVT performance issues\u003c\/li\u003e \u003cli\u003eEliminates the need to purchase multiple roller sets\u003c\/li\u003e \u003cli\u003eMade in Taiwan\u003c\/li\u003e \u003c\/ul\u003e Kit Includes \u003cp\u003e\u003cstrong\u003e36 Total Roller Weights\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e3 × 3g\u003c\/li\u003e \u003cli\u003e3 × 4g\u003c\/li\u003e \u003cli\u003e3 × 5g\u003c\/li\u003e \u003cli\u003e3 × 7g\u003c\/li\u003e \u003cli\u003e3 × 10g\u003c\/li\u003e \u003cli\u003e3 × 14g\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eMixing different weights allows for hundreds of tuning combinations to achieve your desired overall roller weight.\u003c\/p\u003e Specifications \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Prima\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRoller Size:\u003c\/strong\u003e 16x13mm\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWeight Range:\u003c\/strong\u003e 3g–14g\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal Pieces:\u003c\/strong\u003e 36\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-impact composite\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStorage Case Included:\u003c\/strong\u003e Yes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e Taiwan\u003c\/li\u003e \u003c\/ul\u003e Compatible Vehicles \u003cp\u003eFits many scooters using \u003cstrong\u003e16x13mm variator rollers\u003c\/strong\u003e, including:\u003c\/p\u003e \u003ch3\u003eHonda\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eRuckus (NPS50)\u003c\/li\u003e \u003cli\u003eMetropolitan (CHF50)\u003c\/li\u003e \u003cli\u003eElite\u003c\/li\u003e \u003cli\u003eDio\u003c\/li\u003e \u003cli\u003eAero\u003c\/li\u003e \u003cli\u003eGET engine models\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eGY6 50cc (139QMB \/ 139QMA)\u003c\/h3\u003e \u003cp\u003eCompatible with many Chinese scooters including:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eTaoTao\u003c\/li\u003e \u003cli\u003eWolf\u003c\/li\u003e \u003cli\u003eBintelli\u003c\/li\u003e \u003cli\u003eIce Bear\u003c\/li\u003e \u003cli\u003ePony\u003c\/li\u003e \u003cli\u003eand many other 139QMB\/139QMA powered scooters\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eGenuine\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eBuddy 50\u003c\/li\u003e \u003cli\u003eRoughHouse 50\u003c\/li\u003e \u003cli\u003eBlack Jack 50\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eYamaha\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eZuma 50 (Horizontal\/Bug-Eye)\u003c\/li\u003e \u003cli\u003eVino 50 (2-Stroke)\u003c\/li\u003e \u003cli\u003eC3\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eAlways verify your existing roller dimensions before ordering.\u003c\/strong\u003e\u003c\/p\u003e Signs Your Rollers Need Replacement \u003cp\u003eInspect your rollers approximately every \u003cstrong\u003e1,000 miles\u003c\/strong\u003e or during routine CVT maintenance.\u003c\/p\u003e \u003cp\u003eCommon symptoms of worn rollers include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eFlat spots on the rollers\u003c\/li\u003e \u003cli\u003eHigher RPM at cruising speeds\u003c\/li\u003e \u003cli\u003eSlower acceleration\u003c\/li\u003e \u003cli\u003eReduced top speed\u003c\/li\u003e \u003cli\u003ePoor throttle response\u003c\/li\u003e \u003cli\u003eLower fuel economy\u003c\/li\u003e \u003cli\u003eJerky or inconsistent shifting\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eReplacing worn rollers restores smooth CVT operation and helps maximize engine performance.\u003c\/p\u003e Installation \u0026amp; Tuning Notes \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eInstall rollers in an alternating 120° pattern\u003c\/strong\u003e to maintain proper variator balance.\u003c\/li\u003e \u003cli\u003eNever install identical weights side-by-side.\u003c\/li\u003e \u003cli\u003eThese rollers are intended \u003cstrong\u003efor tuning and testing purposes only\u003c\/strong\u003e.\u003c\/li\u003e \u003cli\u003eOnce you've determined the ideal weight, install a complete matched roller set of that weight for long-term use.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eVariator Installation Tips\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eOpen the clutch to create slack in the drive belt before installing the variator.\u003c\/li\u003e \u003cli\u003eEnsure the drive face seats fully against the center boss with \u003cstrong\u003eno visible splines\u003c\/strong\u003e.\u003c\/li\u003e \u003cli\u003eReinstall the variator fan, washer, and retaining nut.\u003c\/li\u003e \u003cli\u003eApply \u003cstrong\u003eBlue Loctite\u003c\/strong\u003e to the retaining nut.\u003c\/li\u003e \u003cli\u003eTorque the variator nut to \u003cstrong\u003e30–35 ft-lbs\u003c\/strong\u003e, or follow your manufacturer's specified torque value.\u003c\/li\u003e \u003c\/ul\u003e Why Choose the Prima Tuning Kit? \u003cp\u003eInstead of guessing which roller weight works best, this kit allows you to fine-tune your scooter's CVT for your exact engine setup, rider weight, and riding conditions. Whether you're running a stock engine or a fully modified big bore build, the Prima Roller Weight Tuning Kit helps you unlock the best possible acceleration, cruising performance, and top speed before investing in a permanent roller set.\u003c\/p\u003e \u003cstrong\u003e \u003c\/strong\u003e \u003cstrong\u003e \u003c\/strong\u003e","brand":"ChinesePartsPro","offers":[{"title":"Default Title","offer_id":53556424966456,"sku":"1400-1069","price":24.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0011\/8898\/6997\/files\/1400-1069__67702.1582662671.jpg?v=1792868642","url":"https:\/\/www.chinesepartspro.com\/products\/gy6s-1400-1069-prima-roller-weight-tuning-kit-16x13-3gm-14gm-for-50cc-100cc-qmb139-gy6","provider":"ChinesePartsPro","version":"1.0","type":"link"}