What is the Difference Between a Mid-drive Motor and a Hub Motor?

Mar 15, 2024

What is the Difference Between a Mid-drive Motor and a Hub Motor?

Electric bikes (e-bikes) have surged in popularity as a versatile mode of transportation that combines the benefits of traditional biking with the added boost of electric power. At the core of every e-bike is its motor, which significantly influences performance, efficiency, and overall riding experience. In this exploration, we’ll delve into the nuances of hub motors and mid-drive motors, the two prevalent types of e-bike motors, and understand their distinct advantages.

The Mid-Drive Motor: The Adventurer’s Powerhouse

What is a Mid-Drive Motor? Mid-drive motors are mounted at the bike’s crankset, leveraging the bike’s gears to provide a dynamic and responsive ride. This central positioning allows for better weight distribution and improved handling.

Advantages of Mid-Drive Motors

Dynamic Power Delivery:

Models like the Eunorau SPECTER-S benefit from the mid-drive motor’s ability to utilize the bike’s gearing system, offering a more natural and controlled riding experience, particularly on challenging terrains.

Superior Weight Distribution:

The strategic placement of mid-drive motors contributes to a balanced ride, enhancing traction and stability, which is crucial when tackling corners or navigating off-road paths.

Optimized Efficiency:

Mid-drive motors excel in efficiency, allowing riders to maximize each pedal stroke, thereby conserving battery life and extending the e-bike’s range. The Eunorau Flash model exemplifies this with its impressive range, courtesy of its triple battery system.

The Hub Motor: An Urban Commuter’s Ally

What is a Hub Motor? A hub motor is ingeniously integrated into the rear wheel of an e-bike, propelling the bike forward with a direct and smooth power delivery. This simplicity makes it a popular choice among e-bike manufacturers and riders alike.

Advantages of Hub Motors

Simplicity and Reliability:

Hub motors, such as those in the Eunorau E-TORQUE model, are the epitome of e-bike simplicity. Their straightforward design minimizes mechanical complexities, offering a reliable ride day in and day out.

Ease of Maintenance:

With the motor housed within the wheel hub, maintenance becomes a breeze. This is especially beneficial for riders who prefer spending more time riding than maintaining their bike.


Generally less expensive to produce, hub motors make e-bikes like the Eunorau E-TORQUE more accessible, providing excellent value without compromising on quality.

Mid-Drive Motors vs Hub Motors: A Comparative Analysis

When comparing hub motors to mid-drive motors, it’s essential to consider the specific needs and preferences of the rider.

Location and Power Delivery:

Hub motors offer simplicity and ease, ideal for urban commuting and flat terrains. In contrast, mid-drive motors provide efficient power through the bike’s gears, making them better suited for climbing hills and traversing diverse landscapes.
Weight Distribution and Handling: The rear placement of hub motors can affect balance, whereas mid-drive motors improve the bike’s handling due to their central location.

Maintenance and Cost:

Hub motors are generally more affordable and easier to maintain. However, mid-drive motors, while potentially costlier to repair outside of warranty, offer enhanced performance and torque, beneficial for more demanding riding conditions.


Whether you’re an urban commuter or an off-road adventurer, understanding the differences between hub and mid-drive motors is crucial in selecting the right e-bike. The Eunorau E-TORQUE with its hub motor is perfect for city riders seeking a low-maintenance and cost-effective solution. Meanwhile, the Eunorau SPECTER-S and Flash models, with their mid-drive motors, cater to those seeking power and efficiency for more rugged adventures. Ultimately, the choice depends on your riding style and the terrains you wish to conquer.