Anyone here ever ride a 09 yz 450 and 2010 yz 450 back to back? I did today at NEMX and I found very little difference between the two. My 09 has a DR D pipe, Radiators lowered and extensive work done on the carb. I thought that they rode very similar, but I sat on top of the 2010 like a KTM and down in on the 09. Otherwise, I thought they handled pretty much the same, power was close, and suspension felt close. My suspension oil was just changed and this was my first ride since-so my suspension was fresh from Enzo (no revalve, just fluid and parts changes and set up like stock-which I like) Mind you this was not my bike (2010), so it might not be set up for me. It may have tracked on a flat corner a tad better, but my tires had some time on them. Maybe I wasn't as aggressive on the 2010 either.hard to say.o Only things I changed on my 2009 was pipe, carb and a lowering kit for the radiators. Everything else is the same(brakes, pads, sprocket sizes, springs, bars, etc.) I think that the bike felt smother(as in the frame felt like it absorbed small bumps through the foot pegs better) but other wise felt like a yamaha. It does growl through the filter intake when you are on it though! Just my thoughts. Is 2500 bucks better than a 2009? I didn't think so, but it did look cool!! that pointy fender is boss!! and did I mention it sounded mean?!!! Anyhow, anyone else do what I did yet?