Here are pics of the 2011 Porsche GT3RS that I rode in and what the front rotors looked like.  As I mentioned, they start showing micro fractures after the first day with standard stuff.  They actually have to toss them before they are worn out, as once a crack touches another hole OR a crack [...]

New Release- Thermal Cycled Engine Sets World Record Bonneville Salt Flats, October 18 2002 Richard Nalin broke the world’s motorcycle speed record driving a 1650 ccmps Harley Engine to a record speed of 202.989 mph, and earlier achieved a trial of 208 mph.

How Thermal Cycling improves military, law enforcement