1) Its a 320mm rotor. Custom CJD prototype brake caliper hanger for stock caliper and pads. Working a dual setup that will be a bolt on.
2) The CJD pegs are designed to brake free when too much force is applied in a crash so damage to frame does not occur. Basically, Crash TESTing proved it works. Someone has to do it.
I put a new bolt in after my crash on Cliffhanger and was good to ride home. No frame damage. This pics was after the climb and before repairs I guess.