So here we go... Im a two stroke guy... at least right now. I ride in the sand and trails, mostly sand... and im tired of riding my bike too hard and breaking stuff. I take good care of it, more care then most people would. But riding it in the sand is just so hard on a machine. Anywho Im getting my bike back tomorrow from the shop with a fresh motor Top and Bottom end... $$$. I have an offer to trade for a 426 straight over, Its a 2002 the same year as my bike. Ive riden my buddies CRF450 and it blew me away power wise, my question is how will a 426 compare to a 450? Im just looking for something around the same power or more (hopefully) then my 250. Ok thanks guys. Oh yeah how are these thing mechanically? Any crazy bad designs anywhere? Any horrible known problems?