Mongoose Frame
2 models, 3 verified variants. Only rows checked against Mongoose’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 | Rear axle | Bottom bracket shell | Head tube | Wheel size | Rear brake mount | Frame only | Top tube | Price (MSRP) |
|---|---|---|---|---|---|---|---|---|---|
| Mongoose Legion | 2 | 14mm | Bottom-bracket shell mid | Integrated-1-1/8 | Built for a 20" wheel | U-brake | Sold as a frameset, not a bare frame | 20.5" (on 1 of 2 variants); 21" (on 1 of 2 variants) | $298.99 to $429.99 |
| Mongoose Legion L20 | 1 | 14mm | Bottom-bracket shell american | Integrated-1-1/8 | Built for a 20" wheel | U-brake | Sold as a frameset, not a bare frame | 20.5" | $299.99 |
Source for every row: Mongoose’s own product pages, last checked between 2026-07-17 and 2026-08-21.
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.