Dirt bike/motocross

[Frosties]

Totally  agree,  what I did was join the local track and hired one of there bikes for a few months, gives them an idea what's it's about, and experience.  Then got the kx85 big wheel. I was surprised how physicality demarding it is. He does press ups to help upper body strength.  After a hour on the track he comes of soaking in sweet.

I'd add sit ups and squats to the press ups - try and build his core up 'cos it's knackering.