In the world of motocross is power truly the most important thing? In our ever evolving test to see whether the rider is more important than the machine we have cooked up this two stroke dirt bike battle royale. On the super powerful 500cc YZilla YZ500 2 Stroke BRC the guys at 999lazer have their weekend warrior Sean Smith, and on the considerably less powerful 250cc Yamaha YZ250 we have their favorite two stroke pro Rob Holyoake – who is fresh back returning from the 2 Stroke world championships at Glen Helen.