Originally Posted by
Ghazmh
AFAIK Specialized is the only one that makes something like that. I believe the are screwed in place. I imagine that whole area may be too tight to run straps around tubes.
Specialized fitted the SWAT Box (as OP pictured) for only a few years on the last-generation (2016 - 2019) Roubaix/Ruby frames. They were almost universally hated by everyone, LOL. You can find the SWAT box itself used or occasionally NOS, but they are affixed using bosses drilled into the frameset - So not easily adaptable to bicycles not equipped with the extra bosses near the Bottom Bracket.