Serpent 120039 Precision 64P/102T Spur Gear Eryx 411 Fit  [SER120039]

Serpent SER120039 Spur Gear 64P / 102T
Price:
NZD$19.13
Brand:
Serpent
Model:
SER120039
Condition:
Brand New
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Accurate Spur Gear Made for Eryx 411

Serpent 120039 is a precision 64P/102T spur gear tailored to the Eryx 411 4.1 Touring Car EP, improving mesh accuracy and reducing vibration under load. It is well suited to drivers tuning gearing for track sessions and practice.

Fine Tuning with 64P Pitch

The closer tooth spacing of the 64 pitch gives more granular ratio choices so you can dial in the balance between torque and top speed. Quality machining preserves tooth form for consistent performance over time.

Recommended Applications

Designed to fit S400 and S411 chassis variants, the 120039 works as a straightforward replacement or an upgrade for Eryx 411 owners seeking smoother drivetrain operation. It performs reliably across a variety of track layouts.

Can I swap this into older Eryx models?

If the older model uses 64P pitch and the same tooth count, the 120039 may fit; confirm dimensions and centre distance to be sure before installing.

Does 64P change wear compared to 48P?

64P gears have finer teeth which can run smoother and allow finer ratio steps, but they may require more precise mesh settings to avoid accelerated wear.

What pinion sizes pair best with this spur?

Pinion choice depends on motor and track; start with your current pinion and make small changes while logging lap times to find the best ratio for your setup.

Should I shim the bearing when fitting?

Check sideplay and endplay after fitting; minimal shimming may be needed to ensure proper backlash and to prevent gear binding under load.

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