Discussion of all forms of motorcycle racing which don't require tarmac for racing: Motocross, MX1, MX2, Supercross, Supermoto, Dirt Track, Flat Track, Trials, Enduro, Rally Raid, Dakar, Drag racing, Grass Track, Hillclimbing, etc etc etc.
The jump that Robbie Maddison does is pretty amazing but.... Levi Lavallee is right beside him the whole way on a snow mobile, and out jumps him!!! How much does a snow mobile weight? ( edit: Polaris says a little over 200kg's) He's got a shorter run up and doesn't seem to be carrying the same speed as the moto on the run up (but that could be camera angle). The snow mobile jump really blows me away. That's bloody impressive.
Yamaha... Japanese for "Two dog's - One steak"- Japh the wise.