3RACING 3RAC-SG6477 Racing Grade 64 Pitch 77T Spur  [3RAC-SG6477]

3RACING 64 Pitch Spur Gear 77T - 3RAC-SG6477
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG6477
Condition:
Brand New
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Race Setup Notes for 3RACING 3RAC-SG6477

The 3RACING 3RAC-SG6477 64 pitch 77T spur gear is intended for racers who need repeatable, small-step changes in drive ratio. Use it when refining lap time through measured adjustments to acceleration and top speed balance.

Performance Tuning Considerations

In a competitive setting, the 64 pitch geometry of this 77T spur enables finer ratio selection, which helps teams tune traction and gearing to specific track sections. Check gear mesh and backlash during each setup change.

Fitment and Race Day Tips

Confirm pinion compatibility and shaft seating before a race. Perform a short warm-in run to verify engagement and recheck fasteners. Keep spare gears and a correct pinion handy for quick swaps between heats.

What should I verify before installing the 3RAC-SG6477?

Ensure your drivetrain uses 64 pitch components, confirm pinion bore and shaft diameter, and check that the spur cover clears the larger tooth count.

How does this spur affect gearing strategy?

Switching to the 3RACING 3RAC-SG6477 gives smaller ratio increments, allowing you to fine tune acceleration versus top speed for qualifying and race conditions.

Recommended checks after a gear swap?

After fitting the 3RAC-SG6477, recheck mesh, torque set screws to spec, and perform a short on-track run to confirm consistent engagement under load.