It's a RaceFace Atlas - it's pressed, there's no bolt holding the arm to the spindle.

INCORRECT IMAGE : Here's a shot from a site in the United Kingdom.

UPDATED VERSION: http://interbike.mtbr.com/wp-content...Face-Atlas.jpg

"Pressed and bonded". Got any more details on that process? What makes the bond - friction? Brazing? Just wondering..

"nobody does the job that way." Well, someone has that tech - the company that built it. Just sent an email to the warranty dept. We'll see if they can make all my dreams come true. I maintain a healthy skepticism, but it doens' hurt to ask - they are pretty new.

Incidentally, any pointers on why that may have happened to my crankset?