Board Thread:Theories and Speculation/@comment-1512913-20150221101637/@comment-6769189-20150225065758

Didn't Madara say Sasuke's was weaker? Madara never really fought them with 2 Rinnegan, but even then it took the 2 of them.

Sasuke's Rinnegan seems to be they midpoint from Rinnegan to Rinne Sharingan.