Epicyclic drive in bicycles

Epicyclic Drive in Bicycles

Epicyclic Drive in Bicycles

Epicyclic Drive in Bicycles

Epicyclic drives, also known as planetary gear systems or gearboxes, have been used in bicycles for many years. This type of gear system consists of one or more outer gears (the ring gear) that surround and mesh with a set of inner gears (the planet gears) that rotate around a central sun gear. The benefit of an epicyclic drive is that it can provide a wide range of gear ratios in a compact and lightweight package.

History of Epicyclic Drives in Bicycles

The first use of an epicyclic drive in a bicycle was in the late 1800s, when the French company Le Petit Journal introduced the "Le Petit Bi" bicycle, which had a two-speed epicyclic drive. Since then, epicyclic drives have been used in various bicycles, including folding bikes, e-bikes, and high-performance racing bikes.

Advantages of Epicyclic Drives in Bicycles

Compact Size

One of the main advantages of an epicyclic drive in a bicycle is its compact size. Unlike traditional derailleur systems, which require a long chain and multiple sprockets, an epicyclic drive can fit into a small space, making it ideal for folding bikes and other compact bicycles.

Multiple Gears

Another advantage of an epicyclic drive is that it can provide multiple gears. By combining different numbers of planet gears and ring gears, an epicyclic drive can offer a wide range of gear ratios, allowing the rider to easily tackle both steep hills and flat terrain.


Epicyclic drives are also very efficient, with less energy lost through friction compared to traditional derailleur systems. This means that more of the rider's energy is transferred to the wheels, resulting in a smoother and more efficient ride.

Epicyclic Drive in Use

Epicyclic Drive Maintenance and Repair

While epicyclic drives are generally low maintenance, they do require occasional cleaning and lubrication. If there is a problem with the system, it is usually best to take the bike to a professional mechanic who is familiar with the workings of epicyclic drives.

Our Company and Products

At our company, we are proud to be a leader in the Chinese gear market. Our products include epicyclic drives, planetary gear systems, planetary boxes, precision planetary gear motors, planetary gearheads, sun planet gears, and planetary gearbox motors. We have over 300 sets of automatic CNC production equipment, as well as automatic assembly equipment.

We are committed to providing high-quality products, competitive prices, and excellent customer service. We welcome customers to send us their drawings or samples for customized orders.

Our Factory

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Author: Czh