The MOT0420 motor from GPM is an aftermarket replacement intended for Associated RC 18T models and delivered as a single unit for RC-scale application. The specification highlights Roadtech bearings, a 0.4m diameter reference, 20 Turns and a recommended voltage band of 4.8v to 8.4v to align with compatible ESCs and packs.
When used as a swap, confirm the motor footprint and mounting alignment with the Associated RC 18T chassis. Check pinion to spur mesh and select a pinion tooth count and ESC capable of the 4.8v to 8.4v range to tune the motor for either stronger torque or higher top speed.
The write-up emphasises fitment and tuning flexibility rather than absolute performance claims. Users can try different turns and bearing choices, with final behaviour depending on battery, gearing and the wider drivetrain.
Fit MOT0420 as a replacement or a test motor on Associated RC 18T cars, and verify mounts, gear mesh and ESC choice to match the 4.8v to 8.4v electrical range.
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