3Racing 3RAC-SG6499/V2 Competition 64 Pitch 99T Spur Gear  [3RAC-SG6499/V2]

3RACING 64 Pitch Spur Gear 99T Ver.2 - 3RAC-SG6499/V2
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG6499/V2
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Setup and Tuning Notes for 3Racing 64 Pitch Spur Gear

The 3Racing 64 Pitch Spur Gear 99T Ver.2, model 3RAC-SG6499/V2, is intended for racers focused on fine incremental changes to overall gear ratio. The 99 tooth count allows tighter tuning steps, enabling incremental adjustments without large jumps in driveline behavior. Use this spur where precise ratio selection and repeatable mesh are required.

Race-Oriented Performance Considerations

When tuning, aim for consistent gear mesh across runs to preserve predictable power transfer. The 3Racing geometry supports smooth engagement, which helps maintain lap-to-lap consistency and reduces unplanned drivetrain variance during events.

Installation and Setup Best Practice

Confirm pinion compatibility, check axial play and bearing condition, then set mesh using the manufacturer recommended clearance method. Recheck mesh after initial break-in runs to ensure repeatable performance in race conditions.

How does a 99T spur affect gearing choices?

A 99 tooth spur gives smaller ratio increments compared to lower tooth counts, which is beneficial when fine tuning acceleration and top speed for specific tracks or tyre choices.

What should I verify before a race meeting?

Check pinion to spur mesh, shaft play and bearing condition, and perform a short controlled run to confirm stable engagement and no unusual noise.

Is this suitable for iterative setup changes between qualifying runs?

Yes, the fine tooth increment of the 99T spur is well suited to iterative changes, allowing small, measured tweaks without large shifts in handling.