We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Hardware

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What are Hub Motors?

By Adam Hill
Updated: May 16, 2024
Views: 9,369
Share

A hub motor is an electric motor that turns a wheel without the use of a transmission. This is accomplished because a hub motor is built directly into the wheel's hub, which is the point around which the wheel rotates. This bypasses the need for a transmission, so hub motors are more efficient, especially at high rates of speed. It is common to find a hub motor on an electric bicycle.

Improvements in Technology

Hub motors, as an idea, have been around since the late 19th century. They originally were conceived for use in automobiles, but modern hub motors are used almost exclusively on electric bicycles. Motorized bicycles are more common in Asia than in other parts of the world, but they have continued to grow in popularity elsewhere because of technological advances. Some motorized bicycles are manufactured, but it can sometimes be cheaper for a hub motor to be installed on a bike as an aftermarket add-on. There are many conversion kits available, including kits for modifying a Chinese hub motor to fit a bicycle of American dimensions.

A motorized bicycle that is equipped with a hub motor will most often also have functioning pedals. If the battery that runs the hub motor runs out, the bike still will need propulsion. Legal regulations in some places might also prohibit the use of motorized vehicles that are not registered.

Battery Power

Hub motors typically run on electricity from rechargeable batteries. On a bicycle, the battery pack is usually located near the rear wheel. Lithium ion and nickel metal hydride batteries are the most preferred types of rechargeable battery because of their light weight. A lighter-weight battery can help to increase its range, which is the key consideration when using a battery-powered hub motor. Depending on factors such as terrain, the rider's weight and weather, an electric bicycle can have a range as short as 4.3 miles (7 km) or as long as 43.5 miles (70 km).

Converting a Pedaled Bicycle

When converting a pedaled bicycle to electric, the hub motor usually is installed on the front wheel. The motor produces high levels of torque on this part of the bike, and it is important for the person doing the conversion to make sure that the frame of the bike can stand up to these increased forces. Many bicycle forks — the parts that mount onto the front wheel — are made of light metals such as aluminum or other lightweight alloys. Lightweight forks are not strong enough to be safe for use with hub motors. Only a steel fork is strong enough to handle the forces that the motor will generate, combined with any road hazards that might be encountered.

Share
EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
Share
https://www.easytechjunkie.com/what-are-hub-motors.htm
Copy this link
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.