Lop the 30s self promotion off the start.
Do faster cuts in time with the beat, especially the strong boom boom boom boom.
More action.
Jumps. Falls.
The kitting up is too long, I feel it building to maybe your son getting out there on the track and ripping it big time.
Anti-climatic.
However...
Good use of craning and crabbing.
Nice colour gradeing, primarys stand out, mud looks flat.
Nice light detailing relief on grip details of gloves etc.
You can handle a camera, I just felt this wasn't really telling a story.
