I have an XR400 and i want a lighter and faster bike. Is the 426 the best way to go? How many of you 426 owners have problems with the bikes?Is it only if you race them they get problems what if you use it for hill climbing, sand dunes, and trail rideing. And why is there so many YZ426's for sale is it to fast or to much work, do they want 2001's or do they want the YZ250F. Thanks for your time.