Ben B.wrote a review of Race Face SIXC Crank Arms on September 5, 2015
Familiarity: I've used it several times
So far no issues with these. They're on my DH bike but weigh little enough for your am bike as well. I paired them with the race face crank boots for some extra protection and so far they are still in great shape. Wish you could get a King Bottom bracket for them but that's about my only gripe.