3RACING 3RAC-SG64121 64 Pitch 121T Spur Gear - Durable On-Road Upgrade  [3RAC-SG64121]

3RACING 64 Pitch Spur Gear 121T - 3RAC-SG64121
Price:
AUD$6.59
Brand:
3Racing
Model:
3RAC-SG64121
Condition:
Brand New
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Consistent meshing from 3RACING 3RAC-SG64121

The 3RACING 3RAC-SG64121 is designed for hobbyists who want dependable gear engagement and predictable drivetrain behaviour. It supports controlled power transfer for cleaner acceleration and braking response.

Compatibility notes

This spur gear fits systems that use 64 pitch gearing and is a solid choice for 1/10 scale on-road cars. It is a practical option when you need reliable gear ratios without fuss.

Practical installation notes

Fit this spur with a matching 64 pitch pinion and set a correct backlash to prevent premature wear. Check the gear after dusty or wet runs and clear any trapped debris to maintain service life.

Do I need a special pinion for this spur?

No special pinion is required, but it must be 64 pitch to match the 3RAC-SG64121 and ensure correct tooth engagement.

How tight should the gear mesh be?

Set a small amount of backlash so teeth do not bind under load; fine tune by checking contact pattern with a marker and adjusting mount positions if needed.

Is this gear noisy at high RPM?

With correct mesh and a matching 64 pitch pinion, the 121T spur runs quietly; excessive noise usually indicates incorrect mesh or worn teeth.

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