Are 16g Variator Rollers Faster in Acceleration?
1 Answers
16g variator rollers provide faster acceleration. Below are specific details about variator rollers: 1. Overview: As one of the rotating components in scooters, variator rollers (also called movable rollers that can move radially) are influenced by engine RPM. When the RPM gradually increases, the variator rollers are subjected to outward centrifugal force that overcomes the resistance of the main spring, causing them to move radially outward along the sliding groove. This increases the force squeezing the axially moving drive face, enlarges the working radius, and reduces the driven face diameter, thereby altering the gear ratio. 2. Weight: Variator rollers typically weigh between 4g to 12g, with factory defaults usually around 7g. Lighter rollers enhance low-speed acceleration feel, while heavier rollers improve top-speed acceleration. This relates to centrifugal force - lighter rollers require less centrifugal force to be thrown outward, meaning they engage at lower RPMs, resulting in stronger perceived acceleration from standstill. Conversely, heavier rollers exhibit the opposite effect. If the vehicle's powertrain remains unmodified, excessively heavy rollers may make the scooter practically require pushing to start, with acceleration only becoming noticeable after reaching higher RPMs.
