2017 ZX10R with about 1100 miles. I performed the initial break in oil change at 600 miles, the oil still looked brand new. Changed it and rode it for about 200 miles before taking it to Road Atlanta for a trackday. I noticed during the track day the oil kept getting darker and darker. Bike still running and shifting fine. Finished the track day and put about another 200 miles of street riding and changed the oil again (all total this oil had about 440 miles on it). When I drained it, it looked like metallic paint no big chunks, but definitely metal and lots of it. It didn’t stick to a magnet just wondering if anyone else has experienced this. I sent an oil sample off just awaiting results. Anyone else?