Stock motor out of 2011 GSXR 600, about 3000 miles, mostly track as far as I know. The motor was in a bike I purchased which had the water freeze in the motor during delivery. Freeze plugs were out in the cylinder head when I pulled the valve cover to check. Not sure of any other damage, that is why I'm selling for parts. Please let me know if you have any questions. $500 OBO, picked up, or I can deliver at the track or on the way in the southeast.