SSP-G 16x13 QMB139 Roller Weight Tuning Kit

Fine-tune your CVT variator with precision using the SSP-G 16x13 Roller Weight Tuning Kit, designed specifically for 50cc 4-stroke QMB139 engines. Instead of buying individual roller sets one at a time, this all-in-one kit gives you 12 complete weight options — from 3g to 14g — so you can dial in the perfect setup for your riding style and engine configuration. Roller diameter: 16mm Roller width: 13mm Includes 3-piece sets of: 3g, 4g, 5g, 6g, 7g, 8g, 9g, 10g, 11g, 12g, 13g, and 14g rollers (36 rollers total) Combine two sets in an alternating pattern to achieve half-gram increments (e.g., 3x 5g + 3x 6g = 5.5g effective weight) Designed for tuning and testing — not intended for permanent long-term use Compatible with QMB139 50cc/49cc engines and various unlisted makes/models Important: Rollers must be installed in an alternating pattern. Failure to do so will cause a severe imbalance in the variator. Once your ideal weight is determined, replace it with a full permanent roller set. California Prop 65 Warning: www.p65warnings.ca.gov