The F103GT-09A/LB heatsink is made to suit Tamiya F103, F103GT and F103RM chassis and provides an extra external surface to dissipate heat from the motor during club sessions and practise laps.
Supplied in a light blue anodized-style coating, the part is presented as a direct accessory for the listed Tamiya models. Fit it where extra cooling will help maintain steady motor temperatures over repeated runs.
Fitting and setup tips: attach the heatsink to the motor housing to increase heat transfer area; monitor motor and ESC temperatures after installation and tweak run duration or gearing to match the new thermal behaviour.
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