3RACING 48 Pitch 69T Spur Gear 3RAC-SG4869 - Competition Grade  [3RAC-SG4869]

3RACING 48 Pitch Spur Gear 69T - 3RAC-SG4869
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG4869
Condition:
Brand New
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Optimised Spur Gear for Racing Drivetrains

The 3RACING 48 Pitch Spur Gear 69T, model number 3RAC-SG4869, is targeted at competitors and tuners who need stable gear engagement. Its 69 tooth 48 pitch profile gives consistent mesh characteristics useful for setup comparisons and ratio tuning.

Technical Profile and Use Cases

As a standard 48 pitch 69T spur, this unit suits most 1/10 scale on-road and versatile off-road chassis where predictable backlash and wear rates matter. It is suited for comparisons when altering pinion tooth counts to refine acceleration and top speed trade offs.

Installation Notes for Tuners

Fitment is straightforward but precise mesh setting is essential. Confirm axial alignment, set minimal but safe backlash, and recheck after a short run-in. This ensures repeatable performance during setup changes or race day adjustments.

How does spur tooth count affect tuning?

Changing the spur tooth count alters the overall gear ratio with the pinion. A higher tooth count increases acceleration at lower speeds but reduces top end. Use this to fine tune track-specific performance.

What mesh settings are recommended for competition?

Aim for minimal backlash while avoiding binding. A snug, even contact pattern across the tooth face is ideal. Recheck mesh after a brief bedding run to confirm stability.

Which pinion types pair best with this spur?

Use hardened steel pinions of matching 48 pitch for durability and consistent tooth profile. Different tooth counts let you experiment with acceleration and top speed for track tuning.

Does spur weight affect handling?

Heavier spurs increase rotational mass and can slightly damp transient response, while lighter units free-rev quicker. Consider weight when choosing components for specific handling characteristics.