Google Customer Reviews 
Description
The Shimano Alfine SG-S7001-8 Rear Hub is an internal gear hub featuring a versatile 307% gear range, effortlessly conquering steep climbs and flat straights alike.
Thanks to an upgraded internal architecture, it delivers smoother, more reliable gear engagement.
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.
Learn more about Shimano’s Inter-8 transmission system here.
CENTER LOCK
The CENTER 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.
Gearing info:
Gear ratio total: 307%
Gear ratio 1: 0.527
Gear ratio 2: 0.644
Gear ratio 3: 0.748
Gear ratio 4: 0.851
Gear ratio 5: 1.000
Gear ratio 6: 1.223
Gear ratio 7: 1.419
Gear ratio 8: 1.615
Specs
- Shimano model number: SG-S7001-8
- Brake type: Centerlock disc brake
- Speed: 8 speed
- OLD: 135 mm
- Axle length: 187 mm
- Spoke size: 13G & 14G
- Spoke count: 32H
- Weight: 1670 g
- Finish: Black
Exclusions:
Please note this hub does not come with the shifter, cog, cassette joiner & SM-S700 small part set.
We do have parts available in our store in Richmond, please reach out as there are multiple cog options and different types of non-turn washers required, depending on your frame.
