Can you help to identify these frames, bikes or parts?

Can't you message the host of the pictures via Flickr? I'd say Nitto RB-021's, but they look to be oversize, and as far as I know, they're only produced in either 25.4 or 26.0..

Would I need a Flickr account for that? Pretty sure they're oversize which is what I want and yes the Nittos are 26.0