geeeez, at that price these things are disposable

http://cgi.ebay.com/ebaymotors/Brake-Rotors-03-06-MITSUBISHI-LANCER-EVOLUTION-EVO-8-9_W0QQitemZ280269416831QQcmdZViewItem?hash=item280 269416831&_trkparms=39%3A1|65%3A10|240%3A1318&_trk sid=p4506.c0.m245#ebayphotohosting

 

I don't know if I would trust these. Wonder what the weight is. Curious what the locking mechanism is on the back side of the bolt in the picture.