I rode a friends 250X today. Very nice QUaLITY feeling motor. Great ergos and narrow light but strong frame. I liked the bike alot. The power band was good, but clearly it is not a 400 although fast... I know for me, a BIG guy, 6'5" 260lbs, I swallow up most bikes, but this bike is too small in physical presense, 4 stroke power and the frame feels small too definitly compared with my big guy DRZ rig. wheasr the WR 450 I rode was a larger frame feeling bike. I don't know the specs..someone may shoot me down here, but the two fifty seemed smaller in size then the WR450 and is definitely not my DRZ - If I were a 6 foot 16 year old I may like the 250. conclusion - for a grown up big guy the little bitty 250 four strokes are not my cup of tea. I need more bike. The lighter weight of the 250 was nice but it's just not the bike for me. I need a big boy bike..... that is now known.... I also now need to ride a 250 2 stroke and see the power as compared to the 400s.... one bike ride at a time.