Prima Roller Weight Tuning Kit (16x13, 3g to 14g)

The Prima Roller Weight Tuning Kit (16x3, 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 50 Genuine Black Cat 50  Genuine Rattler 50 Genuine RoughHouse 50 Honda Ruckus Honda Zoomer Vespa ET2 (pre-1998) K