can someone recomend me a spur gear, prefered from Canadian / us source for quick shipping. I am using 4000 kv motor and running at a parking lot.
Another question is I am using a high voltage 7.2v servo, and receiver, but ESC only output 6v BEC. how can I wire them to 7.2v, If I wire through battery directly, it would direct electronic noise to receiver and servo.