see people say its easy but i know nothing of the inner workings of electronics. look at my posting in general rc.
i have two super fast traxx, and plan on getting the one on ebay that has the extra treads, but is lacking a back wheel, i don't know where to go to get one made. my second one had no treads but i had spares cause i rqan mine so hard as a kid i broke one and my daad ordered 4 more