The Serpent 401021 ring gear is produced to suit the S400 and S411 series with exact 5x6x2 sizing. Its build emphasises consistent tooth engagement and resistance to wear for dependable drivetrain operation.
Matched to the S400 1/10 190mm EP layout, this ring supports uniform torque transmission and improved stability at speed. It is practical for replacing worn components or improving the reliability of a race setup.
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