The Shimano Deore FH-MT401-B Rear Hub is built for reliable trail performance. It features a 12-speed MICRO SPLINE, CENTER LOCK for disc brake rotor installation, and quick-release axle type. The labyrinth and contact sealing ensure durability while providing a wide 141mm O.L.D. for enhanced maneuverability. With a smaller spline diameter for the 10T top gear, this hub allows for a more aggressive and responsive riding experience.
Benefits:
- Designed for 12-speed setups for a wide gear range.
- Easy disc brake rotor installation with spline mount and lock ring.
- Quick-release axle type for straightforward setup.
- Robust labyrinth and contact sealing for long-lasting performance.
- Smaller spline diameter promotes aggressive riding and maneuverability.
Specifications:
| MODEL NO | FH-MT401-B |
|---|---|
| SERIES | SHIMANO |
| Color | Black |
| Remarks | For straight spoke ERD: 550-610 mm Rim offset: 0-3 mm Intersections: 3 cross only, including spoke heads in hub shell. Some spoke calculators may call this 2 cross. Contact the nearest SHIMANO sales office for more information. |
| Color|1 Hub shell | Black |
|---|---|
| Color|1 Quick release | Black |
| Brake type | CENTER LOCK disc brake |
| Rear speeds | 12 – 12 |
| O.L.D. (mm) | 141 – 141 |
| Spoke hole|28H | ✔ |
| Spoke hole|32H | ✔ |
| Spoke hole|36H | ✔ |
| 10 tooth cog compatible | ✔ |
| Axle fixing method | Quick release |
| Quick release skewer length (mm)|174 | ✔ |
| Quick release skewer length (mm)|178 | ✔ |
| Flange distance (mm) | 61.6 | 61.6 |
| Offset (mm) | 6.6 | 6.6 |
| P.C.D. left / right (mm) | 60/61 | 60/61 |
| Flange diameter left / right (mm) | 68.8/69.8 | 68.8/69.8 |
| Spline type|MICRO SPLINE | ✔ |
| Engagement type | Pawl ratchet |
| Quick engagement | X (36 times/360 deg.) | X (36 times/360 deg.) |
| Seal|Hub | Labyrinth+Contact – Labyrinth+Contact |
| Seal|FREEHUB body | Contact – Contact |



