The Serpent 401533 nylon spool is crafted to fit the 411 chassis and provide a reliable way to refine rear-end behaviour. Its nylon build prioritises a low weight footprint while remaining resilient under normal racing loads.
This spool gives steady power to both rear wheels which improves traction during corner exits and under throttle. The lower inertia helps the car accelerate more readily and improves turn-in precision on mixed surfaces.
Install the spool into the Serpent 411 as per the manual; it accepts the optional aluminium bushing for extra security. Running without the bushing is acceptable for lighter or stock setups, but the bushing increases longevity for tuned cars.
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