{"product_id":"polini-16x13-roller-weight-tuning-kit-4-5g-to-6g","title":"Polini 16x13 Roller Weight Tuning Kit - 4.5G to 6G","description":"Dial in your CVT performance with the Polini 16x13 Roller Weight Tuning Kit — a comprehensive four-weight set that lets you test and optimize your scooter's acceleration, top speed, and power band without committing to a single weight. Whether you're chasing snappier off-the-line pull or a higher cruising RPM, this kit gives you the data to find your sweet spot. Key Features Four Weight Options in One Kit: Includes 4.5g, 5g, 5.5g, and 6g rollers — covering the full tuning range for most 50cc CVT setups. Complete Set Per Weight: Each weight size includes 12 shells and 6 rollers, giving you a full replacement set to test each configuration properly. 16x13mm Roller Dimensions: Precision-matched to factory variator roller pockets on compatible 50cc engines. Tuning Use Only: These kits are designed for performance testing and tuning — not intended as permanent replacements. Polini Quality: Manufactured by Polini, a trusted Italian performance brand with decades of two-wheel motorsport engineering. Technical Specifications Roller Dimensions: 16 x 13mm Weight Options: 4.5g, 5g, 5.5g, 6g Quantity Per Weight: 12 shells + 6 rollers Application: CVT Variator Tuning SKU: 146-46 Brand: Polini Vehicle Compatibility Make \/ Model Notes Honda Metropolitan CHF50\/P 2003–2012 (Metropolitan I \u0026amp; II) Honda Ruckus NPS50 All years Honda Elite 50 1994–2001 Kymco ZX50 \/ Agility 50 All years SYM DD50 All years Chinese QMB139 50cc \/ 49cc Various makes and models California Prop 65 Warning","brand":"polini","offers":[{"title":"Default Title","offer_id":48045738066107,"sku":"146-46","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/447103.jpg?v=1783060214","url":"https:\/\/thriftyscooters.com\/products\/polini-16x13-roller-weight-tuning-kit-4-5g-to-6g","provider":"Thrifty Scooters","version":"1.0","type":"link"}