Originally Posted by kitracer

I was at the Xceed cup in Shanghai on the weekend. I had time to pull my car apart and found the receiver box hitting the chassis

During the race, I know 2 runaway MRx5. They either solved the problem by screwing 2 screws into the top plate or file the chassis so the receiver box not touching the chassis.
See if this work.

Also start checking and maintain more often the oneway on the 2nd speed. It will be a problem specially if you run on tight tracks like ours.

Goooood racing.