Project 321 Rear Hub
1 model, 1 verified variant. Only rows checked against Project 321’s own page are listed.
A value shown as a set or a range differs between this model’s variants and is never one variant’s spec. A cell marked not stated is a field the maker does not publish, so nothing here checks it.
| Model | Variants | Freehub | Rotor mount | Hub | Price (MSRP) |
|---|---|---|---|---|---|
| Project 321 G3 rear hub (148x12 Boost, XDR) | 1 | / driver SRAM XDR | 6-bolt | Spacing Boost 148x12 | $440.00 |
Source for every row: Project 321’s own product pages, last checked on 2026-07-24.
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.