Brake discs cracked after Racing

[Bigskank]

So I've been racing this year , with about 7 hours of racing . Wilwood discs
Got a hair line crack with some small one as well

http://[URL=http://s727.photobucket.com/user/bigskank/media/Mobile%20Uploads/image_zps1dbb0ca3.jpg.html][/URL]

 

[b16 mini]

Yes, you do

To get 7 hours of racing out of discs is good I would say

 

[Eoghain]

what pads are you using?