Originally Posted by hotrod87

Little research sees 12 to 22 amps used with some 21.5 motors. If it was me I would gear conservative and try it. If the wheels bind in the rocks that is probably where it'll let out the magic smoke if its gonna happen. But remember they do handle some amperage spikes ,just depends on how much.

Originally Posted by hotrod87

Esc should have an external capacitor and yes a external bec will help.