Well i got a new Ninja 250 from an auto dealer. I really did not get all the information i needed on the bike. Well i bought the bike with about 3,500 miles on it! I´ve probably driven about 5oo miles on it. Now i was wondering if it was safe to be pushing the bike at 80-90 or even 100mph at 10 or 11 or 12 RPM continuously for 30 mins? I havent really taken the bike past 80 because it sounds like im pushing it to its max potential. And finally i was wondering how often you would have to get a tune-up or oil change?