DESCRIPTION: The Prima Roller Weight Tuning Kit (16×3, 3g to 14g) is the best way to tune the CVT transmission in your Genuine Buddy 50, Black Cat 50, Rattler 50, RoughHouse 50, Honda Ruckus and Zoomer, Vespa ET2 (pre-1998), Kymco People 50, or 139QMB GY6 bike.Specifications:Includes 3 of each roller in sizes ranging from 3g to 14g, for a total of 36 weights.Combining 2 sets of rollers allows you to tune your engine with a large variance in weight. For example, by alternating 3x 10g rollers and 3x 11g rollers in the variator, you can get a 10.5g roller set.Lighter weights increase RPMs for a given road speed, while heavier weights lower RPMs for a given road speed.Tailor your tuning to match your engine setup and personal driving style.*DANGER: Weights must be installed in a 120-degree pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!!Compatibility:Genuine Buddy 50Genuine Black Cat 50Genuine Rattler 50Genuine RoughHouse 50Honda RuckusHonda ZoomerVespa ET2 (pre-1998)Kymco People 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsPlease refer to our handychartfor more info on roller weights. Visit ourblogfor additional tips and news.About Prima:Prima is the industry leader in premium scooter accessories, service parts and scooterist protective apparel. Prima brand products are designed direct-fit for all popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, Royal Alloy and GY6 / QMB powered scooters.Made in TaiwanWARNING: California™s Proposition 65
SPECIFICATIONS: Includes 3 of each roller in sizes ranging from 3g to 14g, for a total of 36 weights.Combining 2 sets of rollers allows you to tune your engine with a large variance in weight. For example, by alternating 3x 10g rollers and 3x 11g rollers in the variator, you can get a 10.5g roller set.Lighter weights increase RPMs for a given road speed, while heavier weights lower RPMs for a given road speed.Tailor your tuning to match your engine setup and personal driving style.*DANGER: Weights must be installed in a 120-degree pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!!
COMPATIBILITY: Genuine Buddy 50Genuine Black Cat 50Genuine Rattler 50Genuine RoughHouse 50Honda RuckusHonda ZoomerVespa ET2 (pre-1998)Kymco People 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsPlease refer to our handychartfor more info on roller weights. Visit ourblogfor additional tips and news.About Prima:Prima is the industry leader in premium scooter accessories, service parts and scooterist protective apparel. Prima brand products are designed direct-fit for all popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, Royal Alloy and GY6 / QMB powered scooters.Made in Taiwan
139QMB ENGINES: GY6 bike.