The Serpent 401077 35T one-way pulley refines drivetrain behaviour for S400 and S411 1/10 cars. It promotes efficient torque transfer and steadier traction in high-speed sections.
Manufactured to accurate tolerances, this pulley reduces drivetrain play and supports smooth engagement under load. The one-way action helps maintain forward drive while easing deceleration transitions.
As a direct replacement for the S400 1/10 190mm EP chassis, fitting is straightforward. Inspect the mating surfaces and secure fasteners to factory torque recommendations before running the car.
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