I've had electric all my RC life so what r some things i need to know its a used revo so the guy said motor already broken in and what not but what type of fuel will be the best, tires, and wht other upgrades? I'll be racing and a little bashing. Also does the battery have to stay in the truck while it runs or jus to start it
If your taking about the EZ start battery, no, it's used only to start the engine. If you mean the smaller receiver pack already in the truck, yes, it has to be there. It powers the servos to run the truck.