Serpent 401633 - Aluminum 19T Mid Pulley for S411 Track Upgrade  [SER401633]

Upgrade the S411 with the Serpent 401633 19T Aluminum Mid Pulley

The Serpent 401633 Aluminum 19T Mid Pulley is made for the S411 chassis to give a durable, performance-focused upgrade to your drivetrain. Machined from quality aluminum, this pulley helps resist wear and keeps power delivery consistent under race loads. The precise 19T tooth profile helps smooth torque transfer for improved throttle response.

Sturdy Construction for Racing Use

Built from high-grade aluminum, the Serpent 401633 mid pulley balances strength with low mass to reduce rotational inertia. That reduction helps with initial acceleration and keeps the drivetrain running clean during long track sessions. It is a sensible choice for club racers and competitive drivers alike.

Designed for Easy Fitment

Specifically engineered for the Serpent S411 chassis, this 19T mid pulley installs without any chassis modification. Its accurate dimensions ensure a direct swap with worn or plastic pulleys, making it straightforward to upgrade or replace parts between race meetings.