Shimano Alfine 11-Speed Internal Gear Hub - 135 mm - 32h - Silver
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Product Information
Full details
The Shimano Alfine 11-Speed Internal Gear Hub is designed for urban cyclists, commuters, and touring riders seeking a low-maintenance, high-performance drivetrain. Its primary benefit is the combination of a massive 409% gear range with the weather-protected reliability of an enclosed system, though it requires specific oil bath maintenance that differs significantly from traditional derailleur setups.
All features
| Model Part Number | SG-S7001 |
|---|---|
| Brand | Shimano Alfine |
Extended Product Information
FAQs
Can I use a standard derailleur shifter with the Alfine 11-speed hub?
No, the Alfine 11-speed hub requires a dedicated 11-speed Alfine trigger shifter to ensure the cable pull ratios match correctly.
How often should I change the oil in the hub?
Shimano recommends changing the oil after the first 500-1000 km of use, and then annually or every 2,000-5,000 km depending on riding conditions.
Is this hub suitable for off-road mountain biking?
While durable, this hub is primarily designed for urban commuting, touring, and trekking; it is not intended for aggressive mountain bike usage.
Does this hub require a specific type of chain?
It is compatible with standard 9-speed, 10-speed, or 11-speed chains, provided your sprocket and chainring are compatible with the chosen chain width.
Can I remove the rear wheel easily for a flat tire?
It is slightly more involved than a quick-release derailleur wheel; you must disconnect the cable from the cassette joint mechanism before pulling the wheel from the dropouts.
Troubleshooting
Difficulty shifting between gears
Check the barrel adjuster on the shifter to align the yellow indicator lines in the hub's inspection window while in the correct gear.
Noise while pedaling or shifting
Verify that the oil level is sufficient; if the hub has not been serviced recently, perform an oil change.
Hub slipping or skipping under load
Ensure the cable tension is correctly indexed and that the anti-rotation washers are installed correctly for your specific frame dropout orientation.
Pros and Cons
Pros
- Extremely low maintenance compared to derailleur systems
- Wide 409% gear range suitable for hilly commutes
- Weather-resistant internal design
- Smooth and silent shifting performance
- Internal gearing prevents damage during transport or parking
Cons
- Requires specialized oil change service intervals
- Heavier than traditional derailleur drivetrains
- More complex wheel removal process compared to standard hubs
- Proprietary shifter compatibility requirements
Setup, Compatibility & Care
The Shimano Alfine 11-Speed (SG-S7001) is designed for frames with a 135 mm OLD (Over Locknut Dimension) spacing and features a 32-hole spoke count. It is a top-normal hub, which works with dedicated Alfine 11-speed rapid-fire shifters. Proper installation requires selecting the correct anti-rotation washers, which are color-coded based on your frame's dropouts to ensure the hub stays correctly oriented under torque. For care, the hub uses an oil bath system; it is critical to perform regular oil changes at the recommended service intervals (typically after the first 500-1000km and annually thereafter) using genuine Shimano internal hub oil to maintain shifting quality and prevent internal friction.