The Difference Between 350W and 500W Hub Motors in Conversion Kits

By Isabel Cordero

Sep 21, 2021

The Difference Between 350W and 500W Hub Motors in Conversion Kits
Mid-drive Vs Hub Motor in Electric Bikes Reading The Difference Between 350W and 500W Hub Motors in Conversion Kits 4 minutes Next Best Electric Bikes to Buy Now | Full Ebike Reviews

Electric bikes (e-bikes) have revolutionized urban mobility, offering an eco-friendly, cost-effective, and efficient means of transportation. If you are looking to convert your bicycle into an E-Bike using a conversion kit, one of the critical components that define the performance of an e-bike is its hub motor. In this blog, we'll delve into the differences between 350W and 500W hub motors, two common variants you might consider when choosing an e-bike.

Understanding Hub Motors: The Heart of an E-Bike

Before diving into the specifics, it's important to understand what a hub motor is. A hub motor, positioned in the wheel's hub, directly drives the wheel. It's an integral part of an e-bike's propulsion system, converting electrical energy into mechanical energy.

350W Hub Motor: Balanced Performance for Moderate Needs

The 350W hub motor is known for its balanced performance. It offers a peak power output of 500W and generates a torque of 60Nm. This configuration is sufficient for most urban commuting needs. For instance, it can assist an 80kg rider in climbing hills with a 10% grade in pedal-assist mode. However, it's important to set realistic expectations: a 350W motor won't enable your e-bike to climb steep hills rapidly without some effort from pedaling.


  • Energy Efficiency: The 350W motor is more energy-efficient, ensuring a longer range per battery charge.
  • Lightweight: Generally lighter than higher wattage motors, contributing to a lighter e-bike.
  • Sufficient for Flat Terrains: Ideal for daily commuting in relatively flat areas.


  • Limited Hill Climbing Ability: Struggles with steep inclines.
  • Lower Torque: May not offer the desired acceleration for some users.

500W Hub Motor: Enhanced Power for Demanding Rides

Stepping up, the 500W hub motor caters to those who need more power and torque. It can deliver up to 750W peak power and provides 80Nm of torque, making it capable of tackling hills with a 15% grade for an 80kg rider. This motor is a boon for those living in hilly areas or requiring higher acceleration and speed.


  • Better Hill Climbing: Handles steep inclines more effectively.
  • Higher Torque: Offers quicker acceleration and a more dynamic riding experience.
  • Versatility: Suitable for various terrains and more demanding riding conditions.


  • Increased Battery Drain: Consumes more power, leading to reduced battery life per charge.
  • Slightly Heavier: Adds extra weight to the e-bike, which might affect handling.

Making the Right Choice

When choosing between a 350W and 500W hub motor, consider your typical riding conditions, the terrain, and your personal needs. If you're mainly riding on flat roads and prefer a lighter bike with longer battery life, the 350W motor is a great choice. On the other hand, if you frequently encounter hills or desire higher speeds and acceleration, the 500W motor will serve you better. Remember, more power means quicker battery drain and a slightly heavier bike.

At EbikeBC, we offer both 350W and 500W conversion kits to serve all of your needs, for our complete catalogue please visit: eBike Conversion Kits | Best Electric Bike Conversion Kit For You ( 


In conclusion, both 350W and 500W hub motors have their distinct advantages and trade-offs. The choice largely depends on your specific requirements and the kind of terrain you'll be navigating. Keep in mind that while a more powerful motor offers enhanced performance, it also comes with the caveat of increased battery consumption and weight. Ultimately, the right motor will align with your riding style and environment, ensuring an enjoyable and efficient e-bike experience.


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