I bought a used set of tires. The guy also had a rear rotor and braided front brake lines from a GSXR. He said he thought they were from the same year as mine. So I bought them too. When I went to put the rotor on, it is bigger than mine. I didn't measure mine, but as near as I can measure, the one I bought is 236 or 237mm. I'm going to sell it, but I don't know what year bike it is from. The lines will work, but they seem to be slightly longer than stock. Anyone have any ideas?