Serpent SER401906 21T Pulley X20 FWD Upgrade  [SER401906]

Serpent SER401906 Pulley 21T X20FWD
Price:
£20.73
Brand:
Serpent
Model:
SER401906
Condition:
Brand New
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Improve Drivetrain Smoothness on Your X20 FWD

The Serpent SER401906 Pulley 21T is made for the Medius X20 FWD 1/10 EP series and helps refine how power is delivered to the wheels. It supports steadier operation during laps and practice runs.

Accuracy and Fit

Produced to tight tolerances, the 21T pulley encourages correct gear meshing and reduces drivetrain lash. This helps protect other components and keeps performance consistent.

Model Compatibility

This pulley is suitable for Serpent X20 FWD 1/10 EP models (SER400035, SER400036) and integrates with the stock setup, making it a sensible part for maintenance or performance refreshes.

Does the SER401906 require shims or spacers?

Most installations do not need extra shims; the pulley is sized for the X20 FWD mounting. Double check endplay and alignment when fitting to ensure correct clearance.

Can I reuse the original pulley hardware?

If the original screws and set parts are in good condition, reusing them is acceptable. Replace any worn fasteners to avoid slippage or failure.

Will this pulley suit competitive racing use?

The pulley is a precision replacement designed to maintain reliable engagement. Whether it is suitable for competition depends on your overall setup and tuning choices.

What signs indicate the pulley needs replacing?

Replace the pulley if you see worn or chipped teeth, persistent slippage, or if gear noise increases despite proper alignment and lubrication.

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