Why do you want wide rims that wide @Kerplunk ? Just curious. Are you a heavier kinda guy? Are your trails loose and loamy and steep?Since we are talking carbon wheels I have a set of 29er carbon fan rims sitting in customs atm. Once I get them laced up I will give a review.
I'm coming from narrowish alloy's, never ridden carbon rims and buying a 29mm Id asymmetrical rim..
My logic, for going with carbon fan over all the chinese jobies (and zelvy,curve,derby etc), is they have a wide rim that is light and not built for "enduro". I want wide rims but 90% of my local riding ain't black diamond runs and a heavy carbon rim is just weight I don't need for the coin spent. I just can't fathom spending $1-2k on a wheelset that is heavier than my few hundred buck dt swiss m1900's..
Anyways, I might have it all wrong but lets see later in Jan.