This 12T steel motor pinion is supplied as an aftermarket replacement compatible with the Axial Racing EXO platform for scale RC applications. It is suitable for direct replacement of worn pinions and as a tuning component when altering gear mesh or final drive ratios in EXO configurations.
Technical fitment notes: confirm motor shaft diameter and the specific pinion mounting method before installation, degrease and clean the mating spur gear teeth, establish gear mesh with a thin feeler or approved technique, and tighten the pinion to the motor manufacturer's recommended torque. Use thread locker only as recommended by the motor or chassis documentation.
Performance role: the steel construction improves resistance to wear versus softer materials, preserving tooth geometry across multiple test runs and supporting consistent drivetrain behaviour during tuning sequences.
Service recommendation: inspect tooth faces for burrs or deformation after operation, keep the gear clear of abrasive debris, and replace the pinion at the first sign of tooth damage to avoid accelerated wear to the spur and motor interface.