Shimano Alfine SG-S7001-8 8-Speed Internally Geared Disc Brake Rear Hub – 36H, Black
Product description
Upgrade your bicycle with the Shimano Alfine SG-S7001-8, an 8-speed internally geared rear hub designed for clean, dependable performance on urban, commuter, and utility bicycles.
Featuring Shimano's Alfine internal gearing system, this hub houses its gear mechanism inside the hub shell, providing a streamlined drivetrain setup without a conventional external rear derailleur. Its wide-range 8-speed gearing offers practical versatility for everyday riding, while the enclosed mechanism helps reduce exposure of the gearing to road dirt and debris.
The black hub features 36 spoke holes for compatible wheel builds and a Center Lock disc brake rotor interface. With a single rear sprocket and a traditional threaded axle, it's suited to compatible bicycle frames designed around an internally geared hub drivetrain.
Whether you're building a city commuter, refreshing an existing Alfine-equipped bicycle, or assembling a practical everyday wheel, the Shimano Alfine SG-S7001-8 delivers the functionality and refined engineering expected from Shimano.
Key features
- 8-speed internal gearing: Eight gear ratios housed within the rear hub.
- Enclosed gear mechanism: Helps protect internal gearing from direct exposure to external contaminants.
- Center Lock disc brake interface: Designed for compatible Shimano Center Lock disc brake rotors.
- 36-hole spoke drilling: For compatible 36-spoke rear wheel builds.
- Single-sprocket drivetrain: Designed for internally geared drivetrain configurations.
- Classic black finish: A clean, understated appearance for commuter and utility bicycle builds.
- Shimano Alfine engineering: Built for practical everyday cycling applications.
Technical specifications
| Specification | Details |
|---|---|
| Brand | Shimano |
| Product family | Alfine |
| Model | SG-S7001-8 |
| Product type | Internally geared rear hub |
| Drivetrain speeds | 8 |
| UPC | 689228905429 |
| Manufacturer part number | SG-S7001-8 |
| Colour | Black |
| Spoke hole count | 36H |
| Brake interface | Center Lock disc |
| Rear axle | 10 × 1 mm threaded |
| Nominal rear spacing | 135 mm |
| Rear sprocket interface | Single sprocket |
| Spoke interface | J-bend |
| Rotor lockring | Not included; verify required hardware |
| Installation | Professional wheel building and drivetrain setup recommended |
Compatibility notes
Before purchasing, confirm that your bicycle frame uses a compatible 135 mm rear hub spacing and threaded axle arrangement, and that your wheel build requires 36 spoke holes.
This is an internally geared hub, not a conventional cassette/freehub rear hub. It requires a compatible sprocket, shifter, cable and hub-specific installation hardware. Confirm the required small parts and the appropriate disc rotor lockring before installation.
Check Shimano's technical documentation for the complete parts list, installation procedure and compatibility requirements for your specific build.
Please note: This listing is for the rear hub only. A complete wheel, spokes, rim, shifter, sprocket, installation hardware and disc rotor should not be assumed to be included unless confirmed in the supplied package.