Polini 16x13 Roller Weight Tuning Kit - 4.5G to 6G

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 & 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