BuildMyMTB › Parts › Mountain bike › Rear Derailleur › Box
Box Rear Derailleur
1 model, 3 verified variants. Only rows checked against Box’s own page are listed; each links into the Mountain bike builder.
- Box Box (3 verified variants)
Drivetrain system Box Prime 9 (9-speed) · 9-speed (rear index count the maker rates it for) · Actuation mechanical (cable) · Largest cog 50 teeth
The checker compares the dimensions listed in what we check, and what we don’t. “No conflicts found” means no conflict among those dimensions — not a guarantee that a build works. Errors mean it won’t fit; warnings mean it works but check; infos are notes.