My Suzuki C50 is not a 2008, but it´s still pretty new. I think the bike runs great, but at highway speeds, it really vibrates. Where I live that´s at about 75...well maybe 80. Don´t tell anyone,especially my wife. It does not seem to be the engine whining out, since there still is some power for a mid-size bike this size. Someone says the stock tires are not good. I´m thinking it´s the tires. Any thoughts are appreciated.