Tamiya 84042 - TRF801XT Lightweight Spur Gear Performance Part  [84042]

Tamiya 84042 - TRF801XT Lightweight Spur Gear
Price:
AUD$39.80
Brand:
Tamiya
Model:
84042
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Lightweight spur gear solution for TRF801XT by Tamiya

Tamiya designed the 84042 - TRF801XT Lightweight Spur Gear to reduce rotating mass on the TRF801XT chassis, helping the drivetrain become more efficient. The component is aimed at hobbyists who want a performance-minded, low-mass replacement gear.

Benefits of swapping to a lighter spur

A lighter spur lowers inertia which improves throttle response and aids quicker acceleration. Drivers will find the car more tractable through technical sections and better off the corners.

Installation advice and best practices

This spur is built for direct fitment to the TRF801XT without extra modification. After fitting, double-check gear mesh and drivetrain alignment, and perform periodic inspections for optimal reliability.

Will using this spur change gear ratios?

No, the tooth count stays the same so overall ratio is unchanged; the change is in reduced inertia and improved drivetrain feel.

Should I run different diff oil with this gear?

Not required, but tuning diff oil viscosity can complement the quicker response from the lighter spur depending on track conditions.

How do I check for correct mesh after installation?

Set a snug but not tight mesh with a business card or dedicated gauge, rotate the drivetrain to confirm smooth engagement, and recheck after a short test run.

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