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Well jeez are you going to beat the living sh1t out of it and change the oil every 20 hours and air filter? I mean if you looked "closely" at the people complaining at reliability issues, are these the type that are maintenance freaks? Or punk kids? I understand reliability is a legit concern, but I think it's really skewed from past data/stories.
Pete from Pete Cycle and Sled is a motorcycle mechanic God, he says the engines need to be rebuilt every 2 years if you're a racer..... meaning you're redlining the bike constantly, ALL the time in every race.....
If you're good about the maintenance things with regards to the bike and you're not Ryan Dungey, then I wouldn't worry too much about maintenance issues ( If buying a brand new bike).