3Racing 3RAC-SG4885/V2 48 Pitch 85T Racing Setup Spur Gear  [3RAC-SG4885/V2]

3RACING 48 Pitch Spur Gear 85T Ver.2 - 3RAC-SG4885/V2
Price:
USD$4.40
Brand:
3Racing
Model:
3RAC-SG4885/V2
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Track-Focused 85T Spur for Competitive Tuning

The 3Racing 48 Pitch Spur Gear 85T Ver.2 is intended for drivers who adjust gearing to match track demands. With 85 teeth, this spur provides a stable baseline for ratio changes and predictable drivetrain response during setup iterations.

Optimise Gear Ratios and Setup

Use this spur when testing pinion sizes to refine acceleration versus top speed tradeoffs. It integrates with standard 48 pitch systems and supports quick swaps during practice to dial in the car for qualifying or mains.

How should I approach ratio testing with this 85T spur?

Start with your baseline pinion, change by one or two teeth increments, and record lap times and temperature to find the optimal compromise for the circuit.

Any advice for improving gear mesh under race loads?

Set a consistent clearance, secure mountings to prevent movement, and recheck mesh after a few heat cycles to account for settling in.

Will this spur support aggressive tuning programs?

Yes, it is suited to competitive tuning where frequent pinion swaps and ratio adjustments are part of setup, offering predictable engagement across runs.