I just bought a new in box Kyosho GP Ultima ST. I was running it today (5-7 minutes) to break it in (not to hard), everything was fine my neighbour starting talking to me so i put the brakes on car stalled.

I tried starting it back up then i realized that the back tires were spinning every pull i took (i don't think it was doing it before). No when i put the truck flat on the ground (turned off or on) and try and push it forward the back wheels stay locked.

I removed the spur gear and the rear wheels move without a problem. Has anyone experienced this? thanks