I own both a 250r and a YFZ. I love my 250r to death, one of the nicest quads i've ever ridden but the 4 strokes are just easier to ride. The power on a 250 or any 2 stroke.. especially non-powervalved is just laggy. I love jamming gears into a corner... but on my 50hp yfz i also love coming out of the corners like crazy in 3rd gear. Different rides, both fun but the upper hand on the track goes to the torque and hp of the 4 bangers.