3RACING 3RAC-SG4877 77T 48 Pitch Spur Gear - On-Road Choice  [3RAC-SG4877]

3RACING 48 Pitch Spur Gear 77T - 3RAC-SG4877
Price:
NZD$7.56
Brand:
3Racing
Model:
3RAC-SG4877
Condition:
Brand New
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Fine-Tune Drive Ratios with 3RACING 3RAC-SG4877

The 3RACING 3RAC-SG4877 is a 77 tooth, 48 pitch spur designed for hobbyists who want consistent engagement in 1/10 on-road cars. The gear geometry helps maintain predictable power delivery under typical running conditions.

Compatibility Notes

This spur suits a broad selection of 1/10 on-road chassis that accept 48 pitch gearing. Ensure your pinion is the same pitch to prevent accelerated wear and to preserve drivetrain efficiency.

Installation Checklist

When fitting the 3RAC-SG4877, set the spur to pinion mesh carefully, secure any setscrews, and rotate the gear to confirm there is no rubbing or binding before running at speed.

Do I need a specific pinion for this spur?

Use a 48 pitch pinion that matches the spur profile; mismatched pitch will cause poor mesh and faster wear.

Is there a break-in procedure for the spur?

Run the car at low load for a short period and recheck mesh and fixings to ensure everything beds in without heavy stress.

Can I reuse the spur after a crash?

Inspect for bent or chipped teeth and check the bore; discard or replace the gear if any damage is visible to avoid further drivetrain issues.

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