New to the forum as of about 2 minutes ago. I just took possession of a new (2015) Felt F1 frame . It's gorgeous. Fed ex just left about 20 minutes ago and now I'm staring at it in awe. But...I want to run Udi2 with an internal Battery. The only real access point to the interior of the frame is the hole under the BB shell. I've never seen an internal junction B box before so I'm not sure if it's going to fit through. Can anyone help??