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Reply to "MTH Engine Gear Ratios"

There is also a ton of the 3xx Mabuchi motors, so you want more than just the RS-385, as there are endless varieties of those.  You will want one that is a 12V or 15V model, and also has a top RPM to match your gear ratio.  When I went looking for motors, I was amazed at the difference in specification for the same 3xx model number, there are a bunch of letters/numbers after the motor type that denote various options.

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