Howdy,
Not a Riv, but I see a lot of Black Mountain Cycles chatter here so thought I'd post. Happy to delete if OT.
I'm Road curious. If you have a 56 gathering dust, let me know. I'm open to f/f/hs, complete, or somewhere in the middle.
Since PMing is funky with the new interface, feel free to email me off-list here: erik dot s dot wright at gmail dot com.
Erik, Philly