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

Accurate Gear Ratio Tuning with the 3Racing 64 Pitch Spur

The 3Racing 64 Pitch Spur Gear 99T Ver.2, referenced as 3RAC-SG6499/V2, provides a straightforward way to refine gearing steps. The 99 teeth offer narrow increments for tuning acceleration versus top speed, making it a practical option for drivers refining setups for specific circuits. Intended for 64 pitch configurations, it is useful when predictable mesh and consistent operation are priorities.

Impact on Performance and Wear

Selecting the right spur modifies how torque is applied through the drivetrain, and a larger tooth count can spread load to reduce stress on individual teeth. The 3Racing design focuses on reliable engagement to support repeatable lap times and maintenance intervals.

Compatibility and Best Practice

Confirm pinion match and shaft coupling before fitting, then verify mesh under light load. The 3Racing spur fits many common chassis that accept 64 pitch gears and can be used across different vehicles where fitment allows.