2012 Bikes

I wasn't very clear. It's tight between the fork and the rotor adaptor, and the bolts you use to attach the rotor foul the fork. The Shimano rotors are attached directly to the Centerlock adapter by flat rivets so they fit, but the Avid ones would need a new fork.

I only wish I'd seen this before I replaced the fork post-crash, as I'd have specced one to fit the brakes.

Are you hubs actually center-lock hubs?
Could'nt you just run centre lock disc's with Avid calipers?