im actually curious what the fets do .offer more power to motor?or do they protect the speed controll from killing it self?also i got a chassis kit and the motor dont work .got it fromy you tiny..any tech places that shows how to fix?also tiny do you sell chassis kits alreay equiped with bearings?can slot racing motors work in these how bout those wide foam tires..im gonna take my minix in the slot racing shop and blow um away ..i hope