How does Shimano Alfine work?

How does Shimano Alfine work?

Instead, the sealed Alfine employs an oil bath—like a car’s transmission—which can be drained through a port. Fresh oil can be injected with a special syringe. The whole system spins around a stationary axle that has three pawls—spring-loaded, wedge-shaped pieces of metal.

Are Alfine gears any good?

Our review The Alfine hub gear is the upgraded counterpart to Shimano’s successful Nexus hub. It’s smoother, has a higher-quality feel and looks to be robust enough to go for years. There’s a certain beauty about internally geared hubs; they might be heavier but the bonus is their easy-to-live-with nature.

Is Alfine 11 reliable?

It was very reliable but its weakness was (well documented problem) a slow release of oil from the drive side that I would clean up every month or so; the chain guard could slip out of its retaining groove and move towards the chain (not really a problem but some early adapters wrongly thought that this may have helped …

What is the best internal gear hub?

5 Best Internal Gear Hubs for Your Bike in 2021

• 1.1 SHIMANO SG-3D55 Universal Hub Kit Nexus (32H 3 Speed CenterLock…
• 1.2 SHIMANO SG-3C41 Universal Hub Kit Nexus (36H 3 Speed Coater…
• 1.3 Sturmey-Archer Sturmey Archer S80 8 SPD Internal Drum Brake 36H.

How do I service my Alfine 11 hub?

Shimano Alfine Inter 11 Oil Change

1. Oil, syringe, hose and 3 mm hex key.
2. 3 mm hex key on the nipple with the handle facing forward.
3. Hose connected to the hub.
4. Syringe hanging below the hub.
5. Draining the oil from the hub through the hose.
6. Squirting the oil out of the syringe.
7. Filling the syringe with fresh oil.

Which is best hub or derailleur?

Most hub gears have a smaller range than derailleur gears: the difference between top and bottom gear is narrower. A 3-speed hub is fine on flatter or rolling terrain but can be hard work on hills. A 7-, 8- or 11-speed hub is a better bet there.

What are the gear ratios on the Shimano Alfine inter 11?

Gear ratios The Shimano Alfine Inter 11 has a total gear range of 409% spread out over 11 gears. It does not have a gear with a 1:1 ratio. The steps between each gear are almost equal, except the lowest gear, the step is almost twice as big, so it acts as a “granny” gear for climbing steep inclines.

What’s the reduction gear ratio on an Alfine?

The reduction gear ratio is 0.527, the same in an Alfine or Nexus 8-speed hub, and the tooth counts (with the stepped planet gears, visible in the picture) are the same. Drive next passes from the the planet cage of the first stage to the planet cage of the second stage — they are locked together.

What kind of sprocket does Shimano Alfine 11 speed hub use?

The Alfine 11-speed hub uses 3-lug sprockets common to many brands, 16 teeth and up. The sprocket supplied with this hub has a chain guide plate attached, which will help keep a loose chain from coming off and potentially damaging the shifting parts. This sprocket works with any derailer chain except for the narrowest (10-speed and up).

What’s the range of an 11 speed hub?

The overall range of the 11-speed hub is 408%. The steps between gears are very even except for the lowest step, which is about twice as large as the others. That is not necessarily a bad thing, because narrow ratios in low gears can result in too-frequent shifts, especially while accelerating