I have a 2007 Kawasaki 650R. It just turned 12,000 miles. I bought it used one year ago with new tires. The chain and sprockets are good. From what I've gathered, I shouldn't have any maintenance until the 15,000 mile inspection except for a yearly oil change. I only ride between 2-3 thousand miles per year. How good are these Kawasaki 650Rs? Could I take it up to 50,000 miles while still being cost effective enough to keep it? Thank you.