BuildMyMTB › Parts › Mountain bike › Rear Hub › Project 321
Project 321 Rear Hub
1 model, 1 verified variant. Only rows checked against Project 321’s own page are listed; each links into the Mountain bike builder.
- Project 321 G3 rear hub (148x12 Boost, XDR) (1 verified variant)
Hub: Boost 148x12 · Freehub / driver SRAM XDR · Rotor mount 6-bolt
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.