Traditionally, the gear ratio in scooter CVTs is changed by the in-and-out rolling movement of the roller weights. With the innovative Dr. Pulley sliding roller weights, the roller weights “slide” inward and outward in the Movable Drive Pulley (MDF) to change/extend the gear ratio.

These roller weights are an excellent upgrade for the KYMCO Agility 50.

⚠ WARNING California Residents: Proposition 65 Warning