I'm interested in a 2006 yz450. It has been races about 4 times by a local pro and has between 25-50 hours on it (though the frame is not polished yet??????). It has: black billet hubs (not sure of brand) black excell rims heavy spokes new tires (pirelli something front and a starcross on the back) new plastics nitrided fork legs full suspension work including subtanks Full Dr.D ti exhaust. He is thinking mid $5000 range. I'm thinking less. But I'm a tightass.