My 07 has 14 hours on it....the chain is trash, the rear sprocket is trashed, the fork seals are leaking a lil, the front "strong" excel rim has two dents in it, and the gytr skidplate didnt fit worth a shit. I am not new to bikes and i am a nut with maintenance. My 04250f has stock "generic" rims with no dings...and they've gotten some real abuse especially when i had to ride home with a flat. The fork seals never leaked one bit either. The stock chain and sprockets lasted atleast a lil longer than the 07...and 90% of these hours are pit riding, not even teh mx track. I know the yamaha powerplant is still supposed to be the most reliable but i could have gotten a honda or kawi for 1500 less. Im almost regretting my purchase. I called yamaha and they really didnt seem sympathetic of my situation which angers me even more considering this is my fifth yamaha. Sorry guys, just need to vent.