Naw nae carbon, hummed and hawed about them for a loong time but decided to stay with regular alloy hoops, the way it was working out I could get a dropper (which I can't seem to ride without noo ) as well for the same price. They are BOR 388 rims with Superstar hubs, I've went with a 9mm hub top try to stiffen the front up. This time I never went for the lightest but err'd on the side of caution, still a racey wheelset but not uberlight. Trying to find some nice light winterish/wet/muddy rubber to go with them.