Quote:
Originally Posted by xleonex
why such a low kv? i thought the higher the kv the fast and more torque
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It's true that a high kv is technically faster, but it also pulls more current due to the lower wind count, High currents are inefficient, create more heat, and is harder on all your components.
Wheel torque is a function of motor kv, current draw, and gearing. You generally figure out the voltage you plan to run first (go as high as your ESC will go), then get a motor kv that will put total rpms around 35-40k. Then gear accordingly. Most people shoot for ~35-40mph. If you want higher than that in a heavy vehicle, plan to spend the bucks for a larger motor and better batteries.