This pinion is an RC-scale motor pinion designed for use with Mugen MTX chassis where a 17-tooth option is required for tuning gear ratio. The part is made from 7075 hard aluminium which balances light weight with wear resistance for repeated gear mesh adjustments.
Installation notes: fit the pinion onto the motor shaft, check and set correct mesh with the spur gear, and secure the set screw(s) before running. After installation, verify smooth free rotation and re-check tightness after a short test run.
Tuning role: this 17T pinion is intended for fine adjustments to acceleration and top-speed balance through gear ratio changes, it is a component-level upgrade for RC motor gearing rather than a complete drivetrain modification.
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