You can see some of the testing that we did in the videos above. In the first video above, we were simply testing the motor with the chain, sprockets, and axle. In the second video, Mihai from Boca Bearings was testing the Power Wheels Boca Dune Racer around the building.
In the first video, you can see that the Power Wheels seem to pick up lots of speed by looking at how fast the wheels were spinning. I can't really remember if we went full throttle but I think we did. After doing some more testing of the motor with the chain and axle, the set screws on the motor sprocket would fling out. So I went to Lowe's to get some Loctite Blue Thread Locker to keep the screws from coming out. Below are some pictures of the Loctite and on the set screws.