A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and mechanism are exposed ...

In a Hub Gear, small pinions mesh together to rotate the rear wheel at a different speed from the sprocket. Essentially, this means that the entire gear system is enclosed within a sealed casing, protecting it from the elements and any general wear-and- …

What's a hub gear? It's a type of gearing for pedal cycles where the mechanism is enclosed inside the hub (center) of the rear wheel. The best known example is the Sturmey-Archer 3-speed, whose basic design has been around for over a century.

What is an internal gear hub, how do they work and who makes them? An internal gear hub provides multiple gears on a bicycle in an enclosed unit housed within the rear hub. Almost all...

Read on to learn about the differences between hub gear and derailleur gear, and how Shimano Nexus 7 and Nexus 8 gears compare. Discover the benefits of hub gear, including easy maintenance and durability, and the advantages of derailleur gear, such as refined gear options.

2022年4月30日 · If your route winds along very busy roads, with frequent slowdowns and stops, hub gears are a winning solution because they allow you to change gears in any situation, even when stationary or at a very slow speed, so that you are always agile and quick and do not have to restart by pushing too hard a gear.

What are hub gears? A hub gear system consists of a wheel hub with integrated gears located in the rear hub of a bicycle. Due to its location inside the wheel hub, the gear system is well protected from external influences. This means that this system is relatively impervious to water, frost and dirt, so maintenance is very low.

The NEXUS INTER-5E is a revolutionary internal geared hub with enormous 263% gear range that was designed for the unique demands of e-bike riding, and built to withstand much higher pedaling forces while shifting.

Internal-gear hubs are more reliable than derailer systems, and require much less maintenance. The step-up ratios of their top gears make oversize chainrings unnecessary on small-wheel bicycles. Unlike derailers, internal-gear hubs can shift …

Selecting a hub gear The choice of hub gear is a little daunting at first glance. This page is to help you through the choices. How many gears do I need?... is the wrong question. The number of gears just depends on the range of gears that you need …