Serpent 401020 Differential Spring - 1/10 Club Tuning  [SER401020]

Serpent SER401020 Differential Spring
Price:
NZD$5.88
Brand:
Serpent
Model:
SER401020
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Precision Diff Spring for S400 and S411 Chassis

The Serpent 401020 is designed for hobbyists who want accurate differential control on 1/10 scale S400 and S411 cars. Its engineered spring rate keeps diff preload consistent so handling changes are predictable when you adjust settings between track sessions.

Tuning for Traction and Balance

Adjusting this spring alters how the diff shares power, which can improve front end bite or rear stability depending on setup. It is a practical tool for trimming understeer or oversteer during setup tuning.

Simple Fit and Long Life

Compatible with S400 and S411 series units, this spring is an easy replacement for worn components. The robust material helps it withstand repeated use, keeping your diff behaviour steady lap after lap.

Can I swap this spring between different S400 cars?

Yes, the spring is interchangeable across S400 and S411 differentials as long as the diff housing and internals are standard specification.

Will changing the spring affect wear elsewhere?

Altering spring rate can change load patterns on gears and bearings, so check other diff parts when you change spring stiffness to ensure even wear.

Is any special tool needed to fit the spring?

Basic diff assembly tools are sufficient. A small pick and proper diff grease make installation easier and help set correct preload.

How do I test changes after swapping springs?

Run short test stints and compare corner entry and exit behaviour. Note lap time differences and tyre wear to decide if the change is beneficial.

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