Hey everyone. I'm new to this forum. I need some help. I bought a brand new arrma vorteks 3s 4x4 this week. Straight out of the box on a speed run it just slows down. If I keep running it like that it just stops. . I thought it was my battery and I changed to another one and it does the same thing. Pull the battery, charged them both, they didn't even need much because they were still pretty fresh. One battery is used one is brand new both 3s. Today before I tried it again I pulled the plastic 57t spur gear and put in a 57t steel arrma spur gear and the 20t optional pinion that comes with it. I set everything up right as thats concerned. It's not tight or loose, just right. Again when I ran it did the same thing on pavement going straight speed run it just slows down like it's in limp mode. Drive it like that then it stops. Still have power to the steering servo but no power to move. Turn it off unplug battery plug it back in and it runs. Do a speed run again same thing. Over and over. Have tried different batteries. Motor is not getting hot. Did the proper set up out of the box. Any ideas would be greatly appreciated. Thanks in advance.