How do internal gear hubs shift?
On internally-geared bikes: The hub will shift when pedaling forward, coasting, at a stand still or back pedaling. Some of the modern internally geared hubs can shift with some pressure on the pedals, but the internal assembly will have increased performance and longevity if you ease up the pressure.
How good are hub gears?
Generally, hub gears have a long-life span and are usually maintenance free. The advantage of a hub gear is that you can shift gears when stationary. Hub gears also aren’t as efficient as derailleur gears. However, the efficiency of hub gears tends not to deteriorate, and may even get better as the hub wears in.
How do you maintain internal hub gears?
Clean the inside of the hub shell. Apply grease to the bearings and clutch rollers. I also inject 3cc or 4cc of the special Shimano oil (ice cream topping) between the gears before putting everything back together. Reinsert the cartridge and wipe off the excess grease.
Are Sturmey Archer hubs good?
The classic Sturmey-Archer AW hub is the most reliable gear-shifting mechanism ever made, and rarely needs anything more than a bit of medium-weight oil every so often. 95 percent of shifting problems on 3-speeds are related to the control cable or the shifter.
What is a 3 speed internal hub?
2.972 How a Three Speed Hub Works. 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.
How do I convert my bike to internal hub?
Starts here6:58Convert Your Bike to IGH | Nexus Internal Gear Hub – YouTubeYouTube
How do you adjust a Shimano internal hub?
Starts here2:10How To Adjust Shimano Nexus 3 Speed Hub Shifter Cable – YouTubeYouTube
How do you apply Shimano internal hub grease?
Starts here31:04Shimano Nexus 8 Speed Hub Reassembly – YouTubeYouTube
Is Sturmey Archer still in business?
Sturmey-Archer is a manufacturing company originally from Nottingham, England. In 2000, the assets and trademarks of Sturmey-Archer were sold to Sun Race of Taiwan which was renamed Sun Race Sturmey-Archer Inc. and production moved to Taiwan.
How long do Sturmey Archer hubs last?
If its an old style Sturmey Archer type and you ride hard it will break down in about 3 months. If its a Shimano city unit they are much better, they will last about 2 ~ 3 years before they start giving problems.
What is the difference between internal gear and derailleur?
Internal gear hubs are heavier- Due to the added gears and complexity, internal gear hubs weigh more than derailleur setups. All of this added weight goes into your wheel which slows down acceleration slightly. If you want the lightest possible bike, stick with derailleurs.
What is an internal gear hub?
The internal gear hub, also called hub gear or abbreviated IGH is a system used to change a bicycle’s gear ratio. It achieves this using planetary or epicyclic gears that are housed and sealed within the rear hub. The internal gear hub is an alternative to a derailleur. A Bit of History About the Internal Gear Hub and Derailleur
Who invented the gear hub and derailleur?
A Bit of History About the Internal Gear Hub and Derailleur Surprisingly, the invention of the internal gear hub actually came before the derailleur. The first patent for a hub gear was issued to Seward Thomas Johnson, an American machinist, in 1895. In 1905, Paul de Vivie, a French bicycle tourist, invented the rear derailleur.
What is the difference between derderailleur and igh?
Derailleur systems with 27 gears, often fitted to off-road-style bikes, commonly have a range of over 500%. This means that in the highest gear the bike travels more than five times as far per pedal stroke as it does in the lowest gear. In contrast, a three speed IGH offers a range of around 175%.