3RACING 3RAC-SG64118/V2 64 Pitch 118T Spur Gear - Racing Setup  [3RAC-SG64118/V2]

3RACING 64 Pitch Spur Gear 118T Ver.2 - 3RAC-SG64118/V2
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG64118/V2
Condition:
Brand New
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Racing-grade ratio control with 3RACING 3RAC-SG64118/V2

The 3RACING 3RAC-SG64118/V2 is aimed at racers seeking predictable gear behaviour and repeatable ratio changes for 1/10 class vehicles. It supports fine-tuning of acceleration curves through predictable tooth engagement.

Application and tuning advice

This 118T 64 pitch spur is suited to high-rev brushless systems and class setups where consistent pinion-to-spur interaction matters. Use it to dial in lap time differences by small pinion steps while monitoring motor temps and drivetrain load.

Installation and setup checklist

Ensure precise pinion mesh using a feeler or shim method and torque grub screws to spec. After initial fitting, check for any gear runout, verify spline seat security, and perform short test runs at moderate power to confirm thermal and wear stability.

How should I choose pinion steps with this 118T spur?

Select pinion changes in small increments to observe handling and top speed shifts; aim to keep motor RPMs within the efficient band for your motor to avoid overheating and excessive drivetrain load.

What checks prevent mesh-related failures at race power?

Verify concentricity of shafts, confirm grub screw seating on splines, and run-in slowly while listening for binding or skipping. Readjust if any abnormal noise or heat is detected.

Are there tuning limits for alpine or high-grip tracks?

On high-grip surfaces reduce pinion size to lower stress on the spur and drivetrain, and monitor for clutch or diff slip if torque spikes become an issue.