What will be easier to ride. My brother is looking for a new bike and he has heard that the wr450f is very hard to ride when you are tired! (or it will wear you out quick) can the KTM be that much easier to ride???? any help would be great. I think that the KTM is great but for the money I would Just get a WR250f I seem to have plenty of power for the riding that we do, mostly rocky narrow trails.