Had a weird problem with my RS yesterday. I was at LCRC (big 1/8 scale outdoor track) and made it through the first two rounds awesome. Third round, all I changed was tires but somehow about three laps in the truck just stopped moving. I walked off the stand and went down to pick it up and I could hear the motor spinning but wheels weren't turning so I thought crap, pinion gear came loose.... wrong. I don't know how but somehow the pinion gear melted all the teeth off the spur gear!!! Motor wasn't hot (it was only 3 laps in), the gear mesh was just fine and motor wasn't loose, I am at a loss for what caused it.

Threw on a new spur gear, re-set gear mesh and went out for the main (and lapped 2nd place) and it ran just fine. Any ideas guys??