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Tamiya BigWig - Question

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I have completed restored the Bigwig car. I need your advice.

I removed a brand new Tamyia Technigold motor from the Bigwig because I do not want to run this motor.

I have purchased a new Tamiya RS540 Sport Tuned Motor to replace the Technigold.

My question is: What pinion gear should I use for the sport tuned motor? I research on google and most are pointing to the 18T. But a feel recommends 14T. So which one?

Any advice is greatly appreciative.


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It really is just about trying them out, feeling how hot the battery and motor get after each run... and of course how it runs! going somewhere between the range is a good point to start...


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