This generation of 450 motor is much more controllable than that of the previous models. In the standard map, the bike has smooth, torquey power that wicks up when you want it to, but doesn’t wear you down in the tight stuff. In the aggressive map, there is a huge difference in power delivery, especially right off the bottom. There is more snap, more crackle, and more pop that gives you that full 450 motocross feel. Also, the traction control, so far as one day of testing will tell us, is much more useful on a bike that makes a claimed 63 hp. While with the FX 350, we played with the both maps on the track and trail, the FX 450 had us using the aggressive map on the track and the standard map on the trail.