Board Thread:Naruto Discussions/@comment-5054236-20150717003436/@comment-30323490-20180214210836

Bluefootedbum wrote: Gaiden, the reason Naruto didn't get the rinnegan is because you NEED the predecessor which is sharingan/mangekyou ssharingan and since Naruto isn't in the uchiha clan and/or have a transplanted sharingan.

That's not true. You don't need to be an Uchiha to awaken the rinnegan. The rinnegan is NOT an evolution of the sharingan.

For one to awaken the rinnegan, he needs to posses both Indra's and Asura's chakra. It doesn't matter what kind of eyes you have.Even somebody like Shikamaru would theoretically awaken the rinnegan if he would receive somehow both Indra and Asura's chakra.