Lets throw a few of my thoughts on the YZ vs WR into an incoherant post. YZ thoughts Power - very snappy mid range and really revs out. This thing hauls serious arse, easily runs with a 450 4-stroke, Bottom end is also surprisingly good for slow technical riding. Bitch to wheelie though, I almost flipped it in the first 100m of riding it, you know, one of those balance point, feet in the air stories. Suspension - great for big whoops and jumps but very harsh on rocks and choppy terrain. Handling - awesome, rails corners and yet does not headshake in the rough, high speed stuff. So light and flickable, especially when one is used to the big 4-strokes. Fuel consumption - surprisingly good, although I have not ridden it hard on the gas for extended periods. Mixing 2 stroke is a pain, already added petrol once with no oil (fortunately it was only 3L in a 8L tank) Brakes - best I've had, can stand it on the front wheel entering corners, yet front wheel tracks true with no hint of washout. Others - miss having a side stand and light, for those late afternoon rides where you come home in the dark. Love the smell of the 2stroke (Castrol A747). WR Power - so controllable, yet strong. So easy to wheelie. Very good on fuel for those long exploration rides (10L tank standard + I have 14L tank as option) Suspension - reasonably plush, but not in the league of a CRF250X. Bottoms easy, so dont try and get clever on any big jumps or drop offs. Handling - very stable, slides front and back quite controllably, but you have to muscle it. Its weight definitely affects the dynamics, blunting its responses. Brakes - average, again a lot of weight to be overcome. Other- owned the bike for a year and a half now, very reliable, all the bells and whistles like lights, side stand, odometer, electric start. I love them both. Would be a very difficult decision which to sell. Of course, the YZ is an 05 vs WR being a 03. Therefore, the novelty factor is still high on the former.