For racers and club drivers who tune for consistency, the Serpent 421011 Differential Balls provide a reliable internal component. Built for the S240 Electric Pancar family, these balls keep the differential moving freely so the car remains stable through corner exits.
These balls are produced to minimise internal drag and withstand normal track use. By fitting fresh Serpent 421011 balls you reduce internal wear in the diff, which helps maintain consistent steering and throttle responses lap after lap.
They are compatible with Serpent S100, S120 and S240 differentials and act as direct replacement parts for maintenance or light upgrades. They suit hobbyists who want dependable, repeatable performance without altering the drivetrain setup.
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