Thats shit on commencals part . They are aware of issues with cracking on post 2009 plus 2011 frames . Why give you a new rear end for it simply to snap again . They must understand when this kind of thing happens riders loose faith in that one frame . Hope you get it sorted. And ill be keeping a very close eye on my frame regardless if its 2013
It sure is dude. They claim that the new chainstay has been reinforced...they knew they had a problem in 09 and still couldn't get it fixed my 11 so I doubt the new one would be any different. Even if I swapped it out its always going to be in the back of my mind that it could snap at any minute. Lucky where I bought it has excellent customer service and the best return policy.