What is Shimano Alfine?
Alfine is the name of a comfort and urban oriented product series by Shimano. It is mainly known for internally geared hubs, but includes also hydraulic disc brakes and levers, chain tensioners, dynamo hubs, cranksets, shift levers, and complete wheels.
What is the difference between Nexus and Alfine?
The main difference between Nexus and Alfine groups is that Alfine is designed for disc brakes, and Nexus is designed for roller brakes. Disc brakes are better for riding in hilly terrain. So if you’re commuting in San Francisco, get the Alfine hub.
How does a Shimano roller brake work?
A Rollerbrake has cylindrical rollers around a central, multi-faceted cam. The rollers press three brake shoes outward against the brake drum, for a more even distribution of outward force around the drum than with a conventional two-shoe drum brake.
How does a 3 speed hub work?
Three speed hubs use a planetary gear system to achieve a gear ratio between the sprocket and the wheel. In this gear system the sun gear is fixed in place while the planet carier is rotated. This causes the planet gears to rotate which in turn causes the ring gear to rotate. The rider selects a speed using a shifter.
What kind of hub does Shimano Alfine use?
SHIMANO ALFINE – Internal Geared Rear Hub – CENTER LOCK – Disc Brake – O.L.D. 135 mm – 8-speed The SHIMANO ALFINE S7001-8 hub offers a wide 307% 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.
Which is better Shimano Nexus or Alfine 8 speed?
The Nexus and Alfine 8-speeds are more rugged than at least the older 7-speeds, but it have some well-known failure modes, and there are also well-known ways to prevent failure. A “clunk” now and again on a Shimano 8 speed hub is normal. It is the sun gear rotating and engaging the axle pawls.
How many tooth sprocket does Shimano Alfine use?
But, all you will hear is a slightly louder noise and that is all. The Shimano Alfine hub basically replaces an 8 speed cassette in a 12-38 tooth configuration, and it can only do this by using a 20 tooth sprocket.
What’s the gear range of a Shimano 8 speed hub?
The Alfine 8-speed hub is a very similar, higher-end model which has a disc-brake fitting. The overall range of the Shimano 8-speed hubs is 307%, and the steps in gears are a bit uneven: Ratio