The wrong gear ratio is one of the leading causes to overheating issues in the motor and the ESC.  Today, we’ll go on a quick math lesson on how to calculate Primary gear ratio and Final drive ratio (FDR). 
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 For the month of December, choose FedEx or DHL delivery and take 20% off shipping.
  For the month of December, choose FedEx or DHL delivery and take 20% off shipping.