Board Thread:Versus Debates/@comment-26998824-20151113175404/@comment-26369387-20151125190457

Oh, I did noticed those... I just really didn't thought them as CB Susanoo's wings, because Madara's regular Susanoo has several arms too.

Also, it has been shown many times that Kurama's chakra empowers techniques(Naruto's several Rasengan, Hinata's Vacuum Palm, techniques of Nara, Yamanaka and Akimichi clans, etc). Susanoo, while being pretty rare, is still technique and thus it's pretty save to say that it can be empowered by Kurama's chakra.