This 12-tooth steel motor pinion serves as an aftermarket replacement compatible with the Axial Racing EXO platform and is intended for RC-scale use only. It provides a direct swap for worn pinions and is useful as a tuning change when modifying gear mesh or final drive ratios on EXO vehicles.
Installation advice: confirm motor shaft diameter and pinion mounting style before fitting, clean the spur gear teeth for proper engagement, set gear mesh using an approved thin gauge method, and secure the pinion to the motor using the recommended torque values. Apply thread locker only where the motor or chassis guidance specifies.
Tuning impact: choosing a steel pinion improves resistance to wear compared with softer materials, which helps keep tooth profiles consistent through tuning runs and supports more predictable drivetrain behaviour.
Maintenance reminder: after running, inspect the gear teeth for burrs or distortion, remove any trapped debris, and replace the pinion if you find tooth damage to avoid premature wear on mating gears.
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