E-bike motor size

What to Know

When choosing an electric bike, one of the most important factors to consider is the motor size. The motor is what provides the power to propel the bike forward, and it comes in different sizes and types. In this article, we will explore some of the factors to consider when choosing the right motor size for your electric bike.

Types of Motors

There are two main types of motors used in electric bikes: hub motors and mid-drive motors.

Hub Motors

Hub motors are mounted in the hub of the wheel and provide direct power to the wheel. They are often less expensive and require less maintenance than mid-drive motors. Hub motors are also quieter and more discreet, making them a good choice for commuters who want to blend in.

However, hub motors can add significant weight to the bike, which can affect handling and maneuverability. They are also less efficient than mid-drive motors, which can be a concern for riders who need to cover long distances.

Mid-Drive Motors

Mid-drive motors are mounted near the bottom bracket of the bike and provide power directly to the chain. They are more efficient than hub motors and can provide better torque for climbing hills or carrying heavy loads. Mid-drive motors also allow for a more natural riding experience, as the power is delivered through the pedals.

However, mid-drive motors can be more expensive and require more maintenance than hub motors. They can also be louder and more noticeable, which may not be desirable for some riders.

Motor Size

The size of the motor is measured in watts and indicates the power output. Generally, the higher the wattage, the more powerful the motor and the faster the bike can go. However, higher wattage motors also consume more battery power, which can affect the range of the bike.

The ideal motor size depends on the type of riding you plan to do. Commuters who need to navigate city streets may only need a motor with a lower wattage, while mountain bikers who need to climb steep hills may require a higher wattage motor.

What to Consider

When choosing an e-bike motor size, consider the type of motor, the wattage, and the type of riding you plan to do. Hub motors are less expensive and quieter, while mid-drive motors are more efficient and provide better torque. A lower wattage motor may be suitable for city riding, while a higher wattage motor may be necessary for off-road or mountain biking.


In conclusion, the e-bike motor size is an important factor to consider when choosing an electric bike. The type of motor and wattage will depend on the type of riding you plan to do. By considering your riding style, you can find an e-bike motor size that meets your needs and preferences.

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