Epic stock motor problem
I was out racing the other night when I had probably the weirdest problem I've ever seen with my epic bionary stock. It started running really crappy at the end of the first heat, but I thought it was just my battery. But when it did it again the next heat I knew something was wrong. It was like the pack was dead, about half as fast as it usually is. I tore it down and another racer friend of mine trued the comm for me, or tried to. He showed me that the bit was only contacting one section of the comm. I couldnt figure out how the whole comm could've gotten that out-of-round. I just said just true it until its round, but I haven't run it again since then so I don't know if its going to behave itself again or not. I dont know what happened, I think I hit a board or something but I've never seen a comm go bad like that just from a wall tap. Anyone else had this sort of thing happen to an epic, or really any motor they've raced?