The Kyosho MZ217 motor case set is a reliable mounting component crafted for the MR-03 Mini-Z family. It keeps the motor locked in position to reduce play and maintain drivetrain integrity during aggressive runs.
With dimensions made to match the MR-03 chassis, the case preserves correct motor alignment and helps prevent pinion and spur mis-mesh. That consistency translates to sharper throttle response and cleaner power delivery.
Before fitting, wipe down the case and motor to remove grease and dirt. Fit the motor so the shaft is dead true to the gearset, tighten screws progressively, and recheck mesh after a short test run.
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