Shimano Alfine SG-S7001 11-Speed Disc Internal Hub Gear
| Brand | Shimano |
|---|
The Alfine 11 speed internal gear hub runs on needle bearings for increased durability and high drive efficiency.
The Shimano Alfine S7001-11 hub offers a wide 409% gear range and an improved internal structure for better gear engagement. It is approved for E-Bike and non E-Bike use and is available in black and silver.
Technology
Inter-8
The Inter-8 hub has increased its gear ratio to 307%, compared to 244% of the Inter-7 hub. The Inter-8 hub also incorporates a closer gear ratio allowing a more efficient and comfortable pedaling cadence. A truly “all conditions” internal hub has arrived.
Centre Lock
The Centre Lock system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
Features
- Helical internal sprockets increase durability, perform better with high torque loading and provide a constant engagement for a smooth and quiet operation
- Oil bath lubrication system increases durability and reduces friction in the hub, while Labyrinth seals improve sealing performance both resulting in extending service life
- Double roller silent clutch engagement also gives a smoother quieter shift
- Top normal internal structure for improved tolerance when shifting while riding under load
- Alfine hubs use pedal power to aid down-shifting resulting in fast and accurate shifts with an exceptionally light feel
- Shimano's precise manufacturing abilities have enabled them to construct the Alfine internal hub to be there most efficient yet
- 409% gear ratio
- Centre-Lock disc rotor compatible
- 135mm O.L.D. spacing
Specifications
- Weight: 1,670g
